Estimating Products Bingo

Estimate the product: 11 x 32 is about _____

• 300

• 200

• 400

• 500

Answer explanation

To estimate 11 x 32, round 11 to 10 and 32 to 30. Then, calculate 10 x 30 = 300. Thus, 11 x 32 is about 300, making it the correct choice.

Tags

CCSS.4.NBT.B.5

Estimate the product: 28 x 12 is about _____

• 300

• 100

• 500

• 200

Answer explanation

To estimate 28 x 12, round 28 to 30 and 12 to 10. Then, calculate 30 x 10 = 300. Thus, the product 28 x 12 is about 300.

Tags

CCSS.4.NBT.B.5

Estimate the product: 3 x 88 is about _____

• 300

• 100

• 200

• 400

Answer explanation

To estimate 3 x 88, round 88 to 90. Then, calculate 3 x 90 = 270. This is close to 300, making 300 the best estimate among the choices provided.

Tags

CCSS.4.NBT.B.5

Estimate the product: 110 x 3 is about _____

• 300

• 200

• 400

• 100

Answer explanation

To estimate 110 x 3, round 110 to 100. Then, 100 x 3 = 300. Therefore, the product is about 300, making it the correct choice.

Tags

CCSS.4.NBT.B.5

Estimate the product: 8 x 193 = ____

• 1,600

• 1,400

• 1,800

• 2,000

Answer explanation

To estimate 8 x 193, round 193 to 200. Then, 8 x 200 = 1,600. Thus, the closest estimate is 1,600.

Tags

CCSS.4.NBT.B.5

Estimate the product: 387 x 42 = ____

• 16,000

• 10,000

• 20,000

• 12,000

Answer explanation

To estimate 387 x 42, round 387 to 400 and 42 to 40. Then, calculate 400 x 40 = 16,000. Thus, the estimated product is closest to 16,000.

Tags

CCSS.4.NBT.B.5

Estimate the product: 83 x 621 = ____

• 50,000

• 40,000

• 60,000

• 70,000

Answer explanation

To estimate 83 x 621, round 83 to 80 and 621 to 600. Then, calculate 80 x 600 = 48,000. The closest estimate is 50,000, making it the correct choice.

Tags

CCSS.4.NBT.B.5

Estimate the product: 52 x 443 = ____

• 20,000

• 10,000

• 30,000

• 40,000

Answer explanation

To estimate 52 x 443, round 52 to 50 and 443 to 400. Then, calculate 50 x 400 = 20,000. Thus, the estimated product is closest to 20,000.

Tags

CCSS.4.NBT.B.5

Estimate the product: 921 x 44 = ____

• 40,000

• 30,000

• 50,000

• 20,000

Answer explanation

To estimate 921 x 44, round 921 to 900 and 44 to 40. Then, calculate 900 x 40 = 36,000. The closest estimate is 40,000, making it the correct choice.

Tags

CCSS.4.NBT.B.5

Estimate the product: 52 x 321 = ____

• 16,000

• 10,000

• 20,000

• 25,000

Answer explanation

To estimate 52 x 321, round 52 to 50 and 321 to 300. Then, 50 x 300 = 15,000. The closest option is 16,000, making it the correct estimate.

Tags

CCSS.4.NBT.B.5