Estimating Sums
Addition of 3-digit Numbers
Word Problems
Addition of 4-digit Numbers
Rounding
100

Estimate 562 + 126 to the nearest 100.

What is 700?

100

Calculate 450 + 450

What is 900 ?

100

Ms. Gushue has 123 legos and Ms. Mercer has 827 legos. About how many legos do they have in all?

What is 900 or 950?

100

Calculate 4144 + 1052

What is 5196?

100

Round 576 to the nearest 100.

What is 600?

200

Estimate 7726 + 8234 to the nearest 1000.

What is 16 000?


200

Calculate 903 + 87

What is 990?

200

Ava has 594 stickers and Tegan has 290. Do they have more than 600 stickers?

What is Yes, they have more than 600 stickers.

200

Calculate 2500 + 3500

What is 6000?

200

Round 127 to the nearest 100.

What is 100?

300

Estimate 459 + 5789 to the nearest 10

What is 6250?

300

Calculate 700 + 300

What is 1 000?

300

Benjamin has 2938 pieces of gum and Emma has 293 pieces of gum. How many pieces of gum do they have altogether?

What is 3231 pieces of gum?

300

Calculate 1842 + 6616

What is 8458?

300

Round 4895 to the nearest 1000

What is 5000?

400

Estimate 4415 + 844 to the nearest 100.

What is 5200?

400

Calculate 356 + 475

What is 831?

400

Ryder has 1432 pages read in his book. He has another 457 pages left to read. About how many pages are in Ryder's book? (to the nearest 100)

What is 1900?

400

Calculate 2373 + 7987

What is 10 360?

400

Round 4981 to the nesrest 100

What is 5000?

500

Estimate 3416 + 9544 to the nearest 10

What is 12 960?

500

Calculate 832 + 97

 What is 929?

500

3 schools recycled newspapers. Sprucewood recycles 3107 newspapers, Woodland recycled 2685 newspapers, and Forest Park recycled 1259 newspapers. How many newspapers did they recycle in all?

What is 7051 newspapers?

500

Calculate 9897 + 5948

What is 15 845?

500

Round 6591 to the nearest 10

What is 6590?