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Rounding to Nearest 10s
Rounding to Nearest 100s
Estimating to Find Sums
Estimating to Find Differences
Estimating to Solve Two-Step Story Problems
100
47 rounded to the nearest 10s
What is 50.
100
187 rounded to the nearest 100s.
What is 200.
100
Estimate to solve. 78 + 12
What is 80 + 10 = 90
100
Estimate to solve. 34-12
What is 30-10=20.
100
Estimate to solve. Tom had 66 dimes in his bank. He spent 41 of his dimes. About how many dimes does he now have in his bank?
What is 30 dimes.
200
131 rounded to the nearest 10s.
What is 130.
200

354 rounded to the nearest 100s.

What is 400.

200
Estimate to solve. 56 + 54
What is 60 + 50 = 110
200
Estimate to solve. 67-41
What is 70-40=30.
200
Estimate to solve. Mike scored 21 points in Monday's basketball game and 28 points in Friday's game. About how many points did he score in the last two games?
What is 50 points.
300

91 rounded to the nearest 10s

What is 90.

300
List two numbers that can be rounded to 900.
What is any number from 850 to 949
300

Estimate to solve. 578 + 131

What is 600 + 100 = 700.

300

Estimate to solve. 249-101

What is 200-100=100

300
Estimate to solve. There are 272 popular trees currently in the park. Park workers will plant 255 more popular trees today. About how many popular trees will be in the park when the workers are finished?
What is 600 popular trees.
400

789 rounded to the nearest 10s

What is 790.

400

845 rounded to the nearest 100s.

What is 800

400

Estimate to solve. 150 + 250

What is 200 + 300 = 500.

400

Estimate to solve. 289-110

What is 300-100=200.

400
Estimate to solve. Mary's Cupcake Shop sold a total of 565 cupcakes today, and 183 of those had sprinkles. About how many cupcakes were sold without sprinkles?
What is 400 cupcakes.
500
List two numbers that can be rounded to 80.
What is any number from 75-84.
500

1,299 rounded to the nearest 100s.

What is 1,300

500

Estimate to solve. 467 + 190

What is 500 + 200 = 700.

500
Estimate to solve 999-980

What is 1000-1000=0

500

Estimate to solve. There are 119 erasers in the stockroom. Sandy placed 786 more erasers in the stockroom. About how many erasers are now in the stockroom?

What is 900 erasers.