Proficiency Exam Sample Questions and Answers 1) 2) 3) 4) 5) PLACE VALUE What is the place value of the digit 6 in the following numbers? a) 872,061 b) 90,627,045 Round 79,236 to the nearest ten-thousand. Round 439,071to the nearest hundred. Write each of the following in words. a) 19,253 b) 4,103,918 Write the number 105,027 in expanded form, using exponents. Write 7 • 105 + 4 • 103 + 2 • 102 + 8 • 10 + 4 in standard form. Write each number using numerals. a) eighty thousand, six b) nine hundred seventeen thousand, one hundred sixty-three __________________________________________________________________________________ 6) 7) WHOLE NUMBERS 1) 2) 3) 4) 5) 6) Add: 9732 + 276 Subtract: 5921 - 684 Find the sum of 768, 82, 5937 and 17 Find the difference of 83,012 and 763 Find the average of 80, 92, 83, 56 and 84 What number must be added to 896 to obtain 1000? 7) 8) 9) Multiply: 56 • 423 Find the product of 4007 and 360. Find the quotient and the remainder when 30823 is divided by 60. 7) Simplify: 3 + 7 • 5 – 9 __________________________________________________________________________________ INTEGERS Evaluate each of the following: 1) -23 + 7 2) -8 + (-19) 3) 5 - (-34) 4) 5) 6) -72 ÷ 6 (-8)(-12) (-6)(-7)(0)(-2) 7) 32 + 25 ÷ 5 • 2 - 26 7 - 4(3 - 8 • 6) Evaluate the expression 5x2 when x = -4. Write the following integers in order from smallest to largest: 7, -15, 0, -14, 9, -2 __________________________________________________________________________________ 8) 9) 10) 1 Proficiency Exam Sample Questions and Answers 1) FRACTIONS Name the fraction represented by this set model: • • • • o o • o o o 2) • o o o • o o o • o o o o o o o o o o o The shaded dots have a value of 6 . Draw a circle around “1”. 8 • • • • • • o • • • • • • o • • • o o o o 3) • • • o o o o o o o o o o o Name the fraction represented by the point labeled “A” on the number line. ←|--|--|--|--|--|--|--|--|--|--|--|--|--|--|→ 0 A 1 2 4) 5) 6) 7) 8) 9) 10) Write in lowest terms: 56 84 8 with a denominator of 75. 15 3 2 Add: + 4 5 Write 3 2 − 4 5 3 2 Multiply: • 4 5 3 1 Divide: 1 ÷ 2 4 10 Subtract: 1 Name a fraction between 3 2 and . 4 5 __________________________________________________________________________________ DECIMALS 1) Write 8 as a decimal. 20 2) Add: 7.45 + 8.3 3) Multiply: 8.09 • 0.37 4) 5) 6) Divide: 2.7 ÷ 6.03 (Round quotient to the nearest hundredth.) Perform the following operations: 5.12 - 8.6 + 7.54 Name the place value of the underlined digit: 897.03241 2 Proficiency Exam Sample Questions and Answers 7) 8) 9) 10) Round 54.908732 to the nearest ten-thousandth. What must be added to 0.57 to get 15? Write six hundred three and eighty-eight ten-thousandths as a decimal. Write in order from smallest to largest: 5.0236, 5.02, 5.236, 5.063, 5.3 __________________________________________________________________________________ PERCENTS 1) Write 0.783 as a percent. 2) Write 3) 4) 5) 6) Change 7.5% to a decimal. Change 24% to a fraction in lowest terms. What is 110% of 400? Shade 40% of the grid: 3 as a percent. 5 7) 8) 46.5 is 15% of what number? 32 is what percent of 140? (Round answer to the nearest tenth of a percent.) 9) 0.4% of what number is 16? 10) A basketball player attempts 120 free throws. She makes 90% of them. How many free throws does she make? __________________________________________________________________________________ ANSWERS ON THE FOLLOWING PAGES 3 Proficiency Exam Sample Questions and Answers PLACE VALUE ANSWERS 1) 2) 3) 4) 5) What is the place value of the digit 6 in the following numbers? a) 872,061 b) 90,627,045 ANSWERS: a) tens b) hundred-thousands Round 79,236 to the nearest ten-thousand. ANSWER: 80,000 Round 439,071to the nearest hundred. ANSWER: 439,100 Write each of the following in words. a) 19,253 b) 4,103,918 ANSWERS: a) nineteen thousand, two hundred fifty-three b). four million, one hundred three thousand, nine hundred eighteen Write the number 105,027 in expanded form, using exponents. ANSWER: 1 • 10 + 5 • 10 + 2 • 10 + 7 • 10 5 3 1 0 Write 7 • 105 + 4 • 103 + 2 • 102 + 8 • 10 + 4 in standard form. ANSWER: 704,284 7) Write each number using numerals. a) eighty thousand, six b) nine hundred seventeen thousand, one hundred sixty-three ANSWERS: a) 80,006 b) 917,163 __________________________________________________________________________________ 6) WHOLE NUMBERS ANSWERS 1) 2) 3) 4) 5) Add: 9732 + 276 ANSWER: 10,008 Subtract: 5921 – 684 ANSWER: 5237 Find the sum of 768, 82, 5937 and 17 ANSWER: 5937+768 + 82 +17 = 6804 Find the difference of 83,012 and 763 ANSWER: 83,012 – 763 = 82,249 Find the average of 80, 92, 83, 56 and 84 ANSWER: 80 + 92 + 83 + 56 + 84 = 79 5 6) What number must be added to 896 to obtain 1000? ANSWER: 1000 – 896 = 104 7) 8) Multiply: 56 • 423 ANSWER: 23,688 Find the product of 4007 and 360 9) ANSWER: 4007 • 360 = 1,442,520 Find the quotient and the remainder when 30823 is divided by 60. ANSWER: 30823 ÷ 60 = 513 R 43 4 Proficiency Exam Sample Questions and Answers 10) Simplify: 3 + 7 • 5 – 9 3+7•5–9 3 + 35 – 9 38 – 9 29 __________________________________________________________________________________ ANSWER: INTEGERS ANSWERS Evaluate each of the following: 1) -23 + 7 ANSWER: Different signs, subtract and keep the sign of the larger absolute value -16 2) -8 + (-19 ANSWER: Same signs, add and keep the common sign: -27 3) 5 - (-34) ANSWER: 5 – (-34) = 5 + 34 = 39 4) 5) 6) 7) -72 ÷ 6 ANSWER: Different signs, answer is negative: (-8)(-12) ANSWER: Same signs, answer is positive: 96 (-6)(-7)(0)(-2) ANSWER: 0 (any number times 0 = 0) -12 32 + 25 ÷ 5 • 2 - 26 ANSWER: 32 + 25 ÷ 5 • 2 − 26 9 + 5 • 2 − 26 9 + 10 − 26 19 − 26 −7 8) 7 - 4(3 - 8 • 6) 9) Evaluate the expression 5x2 when x = -4 7 − 4(3 − 8 • 6 ) 7 − 4(3 − 48) ANSWER: 7 − 4(− 45) 7 + 180 187 ANSWER:. 5 x = 5(− 4 ) = 5(16 ) = 80 2 2 10) Write the following integers in order from smallest to largest: 7, -15, 0, -14, 9, -2 ANSWER: -15, -14, -2, 0, 7, 9 __________________________________________________________________________________ 5 Proficiency Exam Sample Questions and Answers 1) FRACTIONS ANSWERS Name the fraction represented by this set model: • • • • o o • o o o • o o o • o o o • o o o ANSWER: 2) o o o o o o o o 8shaded 4 = 30total 15 The shaded dots have a value of 6 . Draw a circle around “1”. 8 • • • • • • o • • • • • • o • • • o o o o • • • o o o o o o o o o o o ANSWER: 6 18 = 8 x 6 x 144 , so 24 dots should be circled = 6 6 x = 24 3) Name the fraction represented by the point labeled “A” on the number line. ←|--|--|--|--|--|--|--|--|--|--|--|--|--|--|→ 0 A 1 2 ANSWER: 4) 5) 3 7 56 84 56 ÷ 7 8 ÷ 4 2 ANSWER: = = 84 ÷ 7 12 ÷ 4 3 8 Write with a denominator of 75. 15 8 • 5 40 = ANSWER: 15 • 5 75 Write in lowest terms: 6 Proficiency Exam Sample Questions and Answers 6) 3 2 + 4 5 3 15 = ANSWER: 4 20 2 8 + = 5 20 Add: __________ 23 3 =1 20 20 7) Subtract: 1 ANSWER: 3 2 − 4 5 3 15 1 =1 4 20 2 8 − =− 5 20 ____________ 1 8) 9) 7 20 3 2 • 4 5 3 2 3• 2 6 3 = = ANSWER: • = 4 5 4 • 5 20 10 3 1 Divide: 1 ÷ 2 4 10 Multiply: ANSWER: 1 5 7 21 7/ 10/ 1 • 5 5 = ÷ = • = 4 10 4/ 21/ 2 • 3 6 2 10) Name a fraction between 3 3 2 and . 4 5 15 8 and . 20 20 9 10 1 11 12 3 13 14 7 , = , , = , , = . Some possibilities: 20 20 2 20 20 5 20 20 10 ANSWER: Choose a fraction between __________________________________________________________________________________ 7 Proficiency Exam Sample Questions and Answers DECIMALS ANSWERS 8 as a decimal. 20 8 ANSWER: = 8 ÷ 20 = 0.4 20 1) Write 2) Add: 7.45 + 8.3 ANSWER: Line up decimal points, then bring down decimal point in the answer: 15.75 3) Multiply: 8.09 • 0.37 ANSWER: Multiply as usual, count the number of decimal places in the factors, then place that many decimal places in the answer: 2.9933 4) Divide: 2.7 ÷ 6.03 (Round quotient to the nearest hundredth.) ANSWER: Move decimal point in the divisor (6.03) to the right until you have a whole number (603). Move the decimal point in the dividend (2.7) the same number of places (270). Bring the decimal point up into the quotient (answer) and then divide. .447 603 270.000 Since the directions said to round to the nearest hundredth, you need to carry the division out to the thousandths place and then round back to the hundredths place: 0.45. 5) Perform the following operations: 5.12 - 8.6 + 7.54 ANSWER: 5.12 – 8.6 +7.54 -3.48 + 7.54 4.06 6) Name the place value of the underlined digit: 897.03241 ANSWER: thousandths 7) Round 54.908732 to the nearest ten-thousandth. ANSWER: Since 7 is in the ten-thousandths place, we look to the right. Since the 3 is less than five the 7 will remain a 7: 54.9087 (If the number to the right of 7 was 5 or greater, we would have changed the 7 to an 8.) 8) What must be added to 0.57 to get 15? ANSWER: 15.00 – 0.57 = 14.43 9) Write six hundred three and eighty-eight ten-thousandths as a decimal. ANSWER: The last digit of the number should appear in the decimal place given (tenthousandths): 603.0088 10) Write in order from smallest to largest: 5.0236, 5.02, 5.236, 5.063, 5.3 ANSWER: Line up the decimal points, fill in with zeroes so that all numbers have the same number of decimal places and then compare their values: 5.02, 5.0236, 5.063, 5.236, 5.3 __________________________________________________________________________________ PERCENTS ANSWERS 1) Write 0.783 as a percent. ANSWER: Move the decimal point 2 places to the right: 78.3% 8 Proficiency Exam Sample Questions and Answers 3 as a percent. 5 2) Write 3) ANSWER: Divide 5 into 3, which equals 0.6, then move the decimal point 2 places to the right: 60% Change 7.5% to a decimal. ANSWER: Move the decimal point 2 places to the left: 0.075 Change 24% to a fraction in lowest terms. 4) ANSWER: 24% = 24 6 = 100 25 For #5 – 10, the proportion method will be used, 5) % is part = = . 100 of total What is 110% of 400? ANSWER: 110 x = 100 400 100 x 44000 = 100 100 x = 440 6) Shade 40% of the grid: ANSWER: 40 x = 100 70 100 x 2800 , so 28 squares should be shaded = 100 100 x = 28 7) 46.5 is 15% of what number? ANSWER: 15 46.5 = 100 x 15 x 4650 = 15 15 x = 310 9 Proficiency Exam Sample Questions and Answers 8) 32 is what percent of 140? (Round answer to the nearest tenth of a percent.) ANSWER: x 32 = 100 140 140 x 3200 = 140 140 x = 22.9% 9) 0.4% of what number is 16? ANSWER: 0.4 16 = 100 x 0.4 x 1600 = 0.4 0.4 x = 4000 10) A basketball player attempts 120 free throws. She makes 90% of them. How many free throws does she make? ANSWER: 90 x = 100 120 100 x 10800 , so she makes 108 free throws = 100 100 x = 108 10
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