Round: Nearest Ten
Round: Nearest Hundred
Estimate with addition (to nearest hundred)
Estimate with addition (to nearest thousand)
Ten Thousands and more (Rounding/Estimating)
100

Round 32 to the nearest ten

30
100

Round 137 to the nearest hundred

100

100

Estimate by rounding to the nearest hundred: 

452 + 312

500 + 300 = about 800

100

Estimate the sum by rounding to the nearest ten:

47 + 52

50 + 50 = about 100

100

Estimate the sum of 12,384 + 2,218 by rounding to the nearest hundred.

*50 point bonus for finding the actual answer

What is 12,400 + 2,200 = 14,600


Actual answer: 14,602

200

Round 88 to the nearest ten

90

200

Round 567 to the nearest hundred

600

200

Estimate the sum by rounding to the nearest hundred:

425 + 268

400 + 300 = About 700

200

Estimate the sum by rounding to the nearest ten:

12 + 83

10 + 80 = About 90

200

51,430 + 236

51,666

300

Round 47 to the nearest ten

50

300

Round 890 to the nearest hundred

900

300

Estimate the sum by rounding to the nearest hundred:

679 + 215

700 + 200 = About 900

300

Estimate the sum by rounding to the nearest ten:

39 + 19

40 + 20 = About 60

400

Round 92 to the nearest ten

90

400

Round 502 to the nearest hundred

500

400

Estimate the sum by rounding to the nearest hundred:

736 + 242

700 + 200 = About 900

400

Estimate the sum by rounding to the nearest ten:

44 + 82

40 + 80 = About 120

500

Round 98 to the nearest ten

100

500

Round 850 to the nearest hundred

900

500

Estimate the sum by rounding to the nearest hundred: 

477 + 523

500 + 500 = about 1,000

500

Estimate the sum by rounding to the nearest ten:

93 + 24

90 + 20 = About 110

500

A unicorn weighs 4,182 sparkles. A fairy weighs 191 sparkles. Estimate the difference between these two mythical creatures. 


Estimate: 4,000 - 200 = 3,800 sparkles




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