CFA Test 4 Multiplying Decimals 5th Grade Davis Elem. School

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What is multiplication?

Back

Multiplication is a mathematical operation that represents the repeated addition of a number. For example, 3 x 4 means adding 3 four times (3 + 3 + 3 + 3 = 12).

Tags

CCSS.3.OA.A.1

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How do you multiply decimals?

Back

To multiply decimals, first multiply the numbers as if they were whole numbers. Then, count the total number of decimal places in both numbers and place the decimal point in the product accordingly.

Tags

CCSS.6.NS.B.3

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What is the product of 5 x 3.5?

Back

17.5

Tags

CCSS.6.NS.B.3

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What is the product of 56 x 32?

Back

1,792

Tags

CCSS.4.NBT.B.5

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What is a partial product?

Back

A partial product is the result of multiplying a single digit of one number by the entire other number, often used in long multiplication.

Tags

CCSS.4.NBT.B.5

Front

What is the total weight of 20 boxes of crayons if each box weighs 0.12 kg?

Back

2.4 kg

Tags

CCSS.6.NS.B.3

Front

What is the product of 4.89 x 7?

Back

34.23

Tags

CCSS.6.NS.B.3

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What does it mean to estimate a product?

Back

Estimating a product means finding a rough value of the multiplication result, often by rounding the numbers to easier values.

Tags

CCSS.4.NBT.B.5

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How can you check your multiplication answer?

Back

You can check your multiplication answer by using the inverse operation, which is division. If the product divided by one of the factors equals the other factor, your answer is correct.

Tags

CCSS.4.NBT.B.6

Front

What is the importance of place value in multiplication?

Back

Place value helps in understanding the value of digits in a number, which is crucial when multiplying multi-digit numbers.

Tags

CCSS.5.NBT.B.5