Multiplying & Dividing Decimals Formative

Seven colleagues went out for dinner and decided to split the bill equally. The food cost $35.70 and the drinks cost $28.00. How much did each colleague pay?

• $9.10

• $11.00

• $63.70

• $90.10

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M.2.1

John believes that the product of 50 x 0.36 will be greater than 25 but less than 50. Is John correct or incorrect? Why?

• John is incorrect because 0.36 is less than half so the answer will be less than 25.

• John is incorrect because 50 x 36 is greater than 50.

• John is correct because 0.36 rounds to .5 and half of 50 is 25.

• John is correct because you always get bigger numbers when you multiply.

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NSO.2.4

Solve the equation. 512 X 36 =__________ (Use only numbers and/or decimal points in your answer

NO Commas.)

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NSO.2.1

Which division equation does the model represent?

(Do not count the blue block that is the Key)

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NSO.2.4

What is the best estimate for the product of 46.12 and 0.5?

• About 20

• About 23

• About 50

• About 100

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NSO.2.4

Solve the equation. 936.5 x 0.001 = ________

(Use only numbers and/or decimal points in your answer.)

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NSO.2.5

What is the quotient of 2,240 ÷ 17?

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NSO.2.2

Jane wants to find the quotient of 42.8 and 4 and knows that the digits to the answer are 107. Which number has the decimal point in the correct place?

• 0.107

• 1.07

• 10.7

• 107

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NSO.2.4

Match the expression below with the best ESTIMATE

• 30

• 6

• 4

• 11

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NSO.2.4

Jennifer is constructing a toy airplane. She spent $15.60 on materials. The airplane kit cost $7.20 and the paint cost $5.40. She also bought 4 stickers. How much did each sticker cost?

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M.2.1