Multiplying by 10s and 100s Worksheets

Pattern boxes show how a basic fact like 4 × 6 = 24 helps with 4 × 60 and 4 × 600. Then students solve 16 problems and two word problems.

Choose 1-digit × multiples of 10 for 3rd grade, or 10s, 100s and 1,000s for 4th grade.

Level

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Multiplying by Multiples of 10

Name: ______________________Date: __________

Use a basic fact to help. Example: 4 × 6 = 24, so 4 × 60 = 24 tens = 240.

5 × 8 =

5 × 80 =

2 × 3 =

2 × 30 =

2 × 4 =

2 × 40 =

5 × 5 =

5 × 50 =

Multiply.

Solve. Show your thinking.

Use a basic fact to help. Example: 4 × 6 = 24, so 4 × 60 = 24 tens = 240.

5 × 8 = 40

5 × 80 = 400

2 × 3 = 6

2 × 30 = 60

2 × 4 = 8

2 × 40 = 80

5 × 5 = 25

5 × 50 = 250

Multiply.

Solve. Show your thinking.

There are 4 books. Each one has 40 pages. How many pages are there in all?
160
There are 4 boxes. Each one has 30 crayons. How many crayons are there in all?
120

Common Core 3.NBT.A.3 asks students to multiply one-digit numbers by multiples of 10 from 10 to 90, like 9 × 80 and 5 × 60.
Common Core 4.NBT.A.1 asks students to recognize that a digit in one place is worth ten times what it is worth in the place to its right, and 4.NBT.B.5 covers multi-digit multiplication.
Say it in tens: 4 × 60 is 4 groups of 6 tens, which is 24 tens, or 240.

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