Chapter 4

Multiples of 10,100, and 1,000

100

Multiply. Use basic facts and patterns

5x3 =15

5x30 = 150

5x300 =_____

5x3,000 =_____

5x300= 1,500

5x3,000 = 15,000

200

Multiply. use basic facts and patterns. 

3x4=12

4x40=120

4x200=___

4x2,000=____

4x200= 800

4x2,000= 8,000

300

Multiply. Solve using basic facts and patterns. 

If 5x9= 45,

Then 5x____=4,500

5x900=4,500

400

Multiply. Use basic facts and patterns. 

if 8x6=48, 

Then 8x_____=4,800

8x600=4,800

500

Multiply. find the unknown number.

If 9x8=72,

then 9x____=720,000

9x80,000=720,000

Round to Estimate products

100

Estimate. Round to the greatest place value. Is the answer greater than or less than? 

2 x 896 

_____x____ =_______

2 x 900 = 1,800

Greater than 

200

Estimate. Round to the greatest place value. Is the answer greater than or less than? 

2 x 657 =

____x_____=______

2 x 700 = 1,400

greater than 

300

Estimate. Round to the greatest place value. Is the answer greater than or less than? 

4 x 437 =

_____x_____=_____

4 x 400 = 1,600

less than 

400

Estimate. Round to the greatest place value. Is the answer greater than or less than? 

3 x 5,489 

____x_____=_____

3 x 5,000 = 15,000

less than 

500

Estimate. Round to the greatest place value. Is the answer greater than or less than? 

6 x 7,843 =

_____x______=______

6 x 8,000 = 48,000

greater than 

Use Place value to multiply

100

Multiply using models. Draw your model!

4 x 13 =

52 

5 tens 

2 ones 

200

Multiply using models. Draw your model!

1 x 34 

34 

3 tens 

4 ones 

300

Multiply using models. Draw your model!

4 x 27 =

108 

10 tens or  1 hundred

8 ones 

400

Multiply using models. Draw your model!

4 x 19 =

76 

7 tens 

6 ones 

500

Multiply using models. Draw your model!

2 x 52 =

104 

10 tens or 1 hundred 

4 ones 

Multiply by a two-digit number (area model)

100

Multiply. show your thinking using area model. 

2 x 10 =

20 

200

Multiply. show your thinking using area model. 

6 x 27 =

162

300

Multiply. show your thinking using area model. 

24 x 2 

48 

400

Multiply. show your thinking using area model. 

7 x 98 =

686

500

Multiply. show your thinking using area model. 

9 x 72 =

648 

Distributive property

100

Use the distributive property to multiply. Then show area model. 

15 x 8 = 

(8x10) + (8x5) = 120 

200

Use the distributive property to multiply. Then show area model.

2 x 32 = 

 (2x30) + (2x2) =

64 

300

Use the distributive property to multiply. Then show area model.

11x8 =

(8x10) + (8x1) =

88 

400

Find the unknown number. 

36x7= T

(7x30) + (7x6) = 252

500

Find the unknown number 

99x9= 

(9x90) + (9x9) = 891