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Schimmel Name: ___________________________________ Date: _______________________________ Multiplication Test Study Guide ____________________________________________________________________________________________________________ Use the model to complete the items in the box to its right. 1. A. Write the number sentence in decimal form that is represented in the model. __0.3____ X __0.5____ = _0.15____ B. Write the problem in fraction form: ______ X _______ = ________ __________________________________________________________________________________________________ Write the words TRUE or FALSE for each statement. READ CAREFULLY and then solve the example for #18 and 19 before answering. 2. __True_______ (True/False) The product of a decimal number that is less than 1 (such 0.5) when multiplied by a decimal number that is also less than 1 (such as 0.4) will always be less than the two factors. Solve: 0.5 x 0.4 = _0.20____ 3. _False_______ (True/False) The product of a whole number (such as 3) when multiplied by a decimal number that is less than 1 (such as 0.8) will be less than the two factors. Solve: 3 x 0.8 = __2.4____ 4. __True_______ (True/False) The number sentence 5 x 0.09 = 0.45 reads 5 groups of 9 hundredths is 45 hundredths. __________________________________________________________________________________________________ Check the two problems below. Follow the directions. 5. The problem below is incorrect. Rework the problem showing the correct solution. 34.6 x 22.3 1038 6920 + 69200 7715.8 The decimal point in the solution should be between the 1 and 5. 6. The problem below is incorrect. Rework the problem showing the correct solution. 56.9 x 2.87 3983 45520 + 11380 60883 The row next to the plus sign should be 113800. The solution should be 163.303 7. Matthew measured the length of his backyard and found it to be 42 feet. He wants to make a model that is 0.01 times as long as the actual length of his house. How long will Matthew's model be? A. 0.042 feet B. 0.42 feet C. 4.2 feet D. 420 feet 8. Alex wrote the following on the board in class. 4,379 x 0.01 = 43.79 4,379 x 0.1 = ______ 4,379 x 1 = 4,379 What is the missing value? A. 0.4379 B. 4.379 C. 43.79 D. 437.9 9. Which problem below would result in a product in the thousandths? A. B. C. D. 2.89 x 3.86 3.85 x 16 17.6 x 4.7 85.21 x 15.7 11. Brady is making a model of the World Trade Center for a history project. The actual building is 1,360 feet tall. He wants to create a replica that is 0.001 times the size of the World Trade Center. How tall will Brady’s model be? A. B. C. D. 13.60 feet 1.36 feet 0.136 feet 136 feet 10. Heather bought six magazines that cost $2.85 each. How much did Heather spend on the magazines? A. $2.85 B. $8.85 C. $15.10 D. $17.10 12. Last week 100 students bought a candy bar for $0.90 each. What was the total amount collected from the candy bar sales? A. $9.00 B. $90.00 C. $900.00 D. $9,000.00 13. Conner gets $5.20 a week for doing his chores. Brady earns 10 times as much money per month for washing the car. How much does Brady earn each month for washing the car? 14. The high school is ordering 1,000 Spirit Day shirts for their students. The cost of one Spirit Day shirt is $5.99. What is the total cost of the Spirit Day shirts for the entire school? A. B. C. D. A. $59.90 B. $599.00 C. $5,990.00 D. $59,900.00 $0.52 $5.20 $52.00 $520.00 15. If Erin shaded 6 tenths green, 6 tenths red, and 6 tenths brown, then what number sentence did he model? A. B. C. D. 0.3 x 0.6 = 0.018 0.6 x 0.6 x 0.5 = 0.125 3 x 0.6 = 1.8 6 x 6 = 36 16. My cell phone plan allows me to send 350 text messages for free. After I use my 350 free messages, I am charged $0.25 for each additional text message I send. If I sent 425 messages last month, how much did I have to pay for my text messages? A. $11.25 B. $87.50 C. $18.75 D. $106.25 17. A farmer plants 0.5 of his field with corn. Of this corn, 0.4 is sweet corn. What part of the field is planted in sweet corn? A. B. C. D. 18. John made the following model to show a multiplication number sentence. Which multiplication number sentence does the model show? 0.0002 0.002 0.02 0.20 A. 0.5 x 0.4 = 0.20 B. 0.5 x 3 = 1.5 C. 0.5 x 0.3 = 0.15 D. 5 x 0.3 = 1.5 19. Brianna needs to buy a new binder for school. She also needs to get a two spiral notebooks and a lunch box. What is the total amount that Brianna will spend for these items? School Supplies Book Bag Binder Spiral Notebook Lunch Box A. B. C. D. $24.66 $32.76 $22.41 $28.26 Price for Each $10.35 $12.66 $2.25 $7.50 20. Last week a gallon of gas cost $4.54. Brian put 16.5 gallons of gas in his car. How much did Brian spend on gas? A. B. C. D. $11.96 $21.04 $74.46 $74.91