Topic 3 Review

Set A

100

1. 8 × 60

480

200

4. 5 × 30

150

300

6. 2 × 900

1,800

400

13. 7 × 9,000

63,000

500

10. 5 × 8,000

40,000

Set B

100

Estimate each product.
7. 483 × 6 

3,000

200

Estimate each product.

2. 493 × 3

1,500

300

Estimate each product.

6. 5,703 × 3

18,000

400

Estimate each product

1. 8 × 7,632.

64,000

500

Estimate each product.

8. 6 × 8,166

48,000

Set C Arrays

100

1. 75× 5

375

200

2. 253×4

1,012

300

3. 214× 7

1,498

400

4. 1,341× 7

9,387

500

What Property is shown below?

6 x 250 = ( 3 x 2 ) x 650 

3 x (2 x 650)

Associative

Set D Multiply

100

1. 7 × 45

315

200

3. 720 × 6

4,320

300

8. 4 × 1,865

7,460

400

10. 209 × 7

1,463

500

What Property is shown below?

2 x 85 = 85 x 2 

Commutative

Set E

100

9. 171 × 8

1,368

200

5. 6 × 987

5,922

300

4. 2,189 × 7

15,323

400

1. 1,468 × 4

5,872

500

What Property is shown below?

3 × 1,275 = 3 × (1,000 + 200 + 70 + 5) = (3 × 1,000) + (3 × 200) + (3 × 70) + (3 × 5

Distributive