Estimate
Add
Subtract
Real World
200

Estimate: 

4,630 + 2,117

≈ 5,000 + 2,000 ≈ 7,000 

200

Evaluate the expression: 

5,740 + 3,136

= 8,876

200

Evaluate the expression: 

1,630 - 1,007

= 623

200

Henry bought two fidgets for $3.35 each and a basketball for $8.29. How much money did Henry spend altogether? 

3.35  + 3.35 + 8.29 = $14.99

300

Estimate:

1,209 - 1,147

≈ 1,200 - 1,100 ≈ 100

300

Evaluate the expression: 

16.591 and  4.359

= 20.95

300

Evaluate the expression: 

23.1 - 6.59

= 16.51

300

A bakery used 4.56 pounds of flour to make bread and 3.89 pounds to make pastries in the morning. The bakery had 12 pounds to begin with, how many pounds do they have left? 

4.56 + 3.89 = 8.45

12.00 - 8.45 = 3.55 pounds left

400

Estimate the sum of: 

17.981 and 2.356

≈ 18 + 2 ≈ 20

400

Evaluate the sum: 

6.58 and 0.483

= 7.063

400

Evaluate the difference: 

7.54 and 0.248

= 7.292

400

Grayson jogged 2.8 miles on Monday and 3.25 miles on Tuesday. On Wednesday, he wants to jog enough miles so that his total for the three days is exactly 10 miles. How many miles does Grayson need to jog on Wednesday?

2.80 + 3.25 = 6.05

10 - 6.05 = 3.95 miles on Wednesday

500

Estimate the difference of: 

18.54 and 1.289

≈ 19 - 1 ≈ 18

500

Evaluate the sum: 

17.238 and 14

= 31.238

500

Evaluate the difference: 

173 and 0.573

= 172.427

500

Hailey buys a box of cereal for $4.99, a gallon of juice for $3.50, and a pack of muffins for $6.80. If she has a coupon that saves her $2.25, how much does she pay in total after using the coupon?

4.99 + 3.50 + 2.25 = 15.29

15.29 - 2.25 = $13.04 in total