Estimating Multiplication

Estimate 9.94 x 6.6

• 65.604

• 0.656

• 656.040

• 6,560.400

Estimate 6.3 × 1.682

• 10.5966

• 105.9660

• 0.1060

• 1,059.6600

Estimate 2.12 × 0.887

• 18.80440

• 0.01880

• 188.04400

• 1.88044

Bobby says the best estimate for 328 × 38 is 12,000. Kate says the best estimate for the same problem is 1,200. Which student has the incorrect estimate?

• Bobby

• Kate

• Both are incorrect

• Both are correct

Which shows the best estimate to use for estimating 37 × 63?

• 40 × 70 = 2,800

• 50 × 60 =  3,000

• 40 × 60 =  2,400

• 30 × 60 =  1,800

• A

• B

• C

• D

estimate to the nearest thousands and solve: 1,234 x7

Which shows the best estimate to find 62 x 77?

• 60 x 70 = 4,200

• 60 x 80 = 4,800

• 65 x 75 = 4,875

• 62 x 100 = 6,200

Find the closest estimate of 425 x 29

• 1200

• 1,500

• 1,200

• 12,000

How many markers are there in 236 such boxes?