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Name _______________________ Date _________________________ MAT115 Test 1 Solve all problems and attach this solutions document in your Individual Forum (IF) by Sunday Midnight. Remember to show all steps and check your work carefully. Correct Solution? Y Y N N Appropriate Steps Shown? Y N Y N Credit Earned per Problem Full Credit Partial Credit Partial Credit No Credit Chapters 1 and 2 Test 25 problems – 4 points each 100 points possible Problem 1 2 3 Perform the indicated addition. 32,125 66,301 Estimate the sum by rounding to the nearest hundred. 489 1, 324 416 My Comments 32,125 66,301 98,426 500 1,300 400 2,200 Name the property of addition and/or multiplication that is illustrated. (a) (3 6) 9 3 (6 9) (b) 7 (1 9) (7 1) (7 9) 4 Work and Solution Do the indicated subtraction. 7, 027 2, 658 (a) Commutative property (b) Distributive property 7, 027 2, 658 4,369 5 What is the product of 22 and 491? 22x491 = 10,802 6 Estimate the following product by Chadwick MAT 115 Chapter 1 and 2 Test 1 rounding each factor to the nearest hundred. 839 800x400 = 320,000 387 7 Evaluate. 155 (33 4) = 155 (31) = 5 8 Evaluate: 15 12 22 3 (12 4 3) = 15-12x x = 15-3x 9 Divide. Give the remainder if applicable. = 393 7 2, 751 10 Find the perimeter of the figure. = 5+8+8+4 = 25 11 a) Which of the numbers 23, 30, 15, and 43 are composite? a) 30 = 6x5 composite 15 = 3x5 composite b) Which of the numbers 22, 5, 24, and b) 53 are prime? 5 = 1x5 prime 53 = 1x53 prime Justify your answers. 12 Find two factors of 60 with a sum of 17. 13 11 a) Change Chadwick 3 8 to an improper fraction. MAT 115 5, 12 5x12 = 60 5+12 = 17 8 x11 3 91 8 8 Chapter 1 and 2 Test 2 2 1 12 3 4 2 . 7 Write your answer in Multiply 5 simplest form. 3 18 54 x 5 7 35 1 9 6 3 . Multiply 6 11 17 Write your answer in simplest form. 19 9 6 1026 171 x x 6 11 17 1122 187 b) Change 25 to a mixed or whole 12 number. 14 15 16 Find the greatest common factor of 63, 147, and 273. 63 = 32x7 147 = 3x72 273 = 3x7x13 GCF = 3x7 = 21 17 2 12 . 7 Write the result in Divide simplest form. 18 2 1 5 3 . 3 Write the result in Divide 7 simplest form. 19 Evaluate 198 ft/s 1 yd/3 ft 60 s/min. Be sure to use the proper units. 12 x 7 84 42 2 2 37 10 37 3 111 x 7 3 7 10 70 198 ft 1yd 60s x x 3960 yd / min s 3 ft min Real World Applications 20 In the number 234,829 a) 3 (a) What digit tells the number of ten thousands? (b) What digit tells the number of hundreds? (c) Write the word name for the number. 21 Kala bought a personal computer for $2,110. In addition, she spent $449 for a printer and $509 for software. How much did she spend? 22 Adrienne opened a checking account and made deposits of $95 and $367. She wrote checks during the month for $32, $22, $82, and $167. What was her balance at the end of the month? Chadwick MAT 115 b) 8 c) TwoHundredThirtyFourThousandandEight HundredTwentyNine 2110+449+509 = 3068 = 95+367-32-22-82-167 = $159 Chapter 1 and 2 Test 3 23 A plate glass window measures 5 ft by 7 ft. If glass costs $7 per square foot, how much will it cost to replace the window? 24 The gas tank in Giorgio's car holds 23 gal when full. The car gets 25 mi/gal. How far can he travel on 4 full tanks? 25 On a test of 36 questions, Sam answered 16 correctly. On another test, Sam answered 32 correctly out of 72. Did Sam get the same portion of each text correct? Prove your answer. Chadwick MAT 115 = (5x7)x7 = $245 4x23x25 = 2300 miles 16 36 32 72 Yes. 4 9 4 9 Chapter 1 and 2 Test 4