Fifth Grade Estimate Quotients

Estimating is to....

• find the exact answer

• find something close to the correct answer

• use an algorithm

Eric bought 231 cows and Lisa bought 392 cows. Estimate how many cows they bought in total.

• 600 cows

• 1,000 cows

• 200 cows

• 100 cows

Using estimation, 36 x 69 is closest to...

• 1800

• 2800

• 2400

• 1200

Using estimation, 76 x 34 is closest to...

• 2,400

• 240

• 1,100

• 2,100

• 11

• 9

• 8.941

• .9

79.2 ÷ 39 ≈

• 0.2

• 0.02

• 0.002

• 2

9.13 ÷ 23 ≈

• 0.3

• 0.03

• 0.003

• 3

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

Isabelle has 6 ant farms. Each ant farm has 89 ants. Which of the following shows a reasonable estimate of how many ants Isabelle has?

• 7x125=875

• 8x110=880

• 6x90=540

• 10x100=100

A toy store ordered 48 crates of stuffed bears. There are 21 stuffed bears in each crate. What is the best estimate of how many stuffed bears the store ordered?

• 500

• 428

• 2,000

• 1,000