Calculator Skills
Name that Place
Rounding
Estimation
100

Convert 4/10 to a decimal

0.4

100
825,105 What place is the 5 in?
The THOUSANDS place
100

Round to the nearest TEN. 26

30

100
Estimate   73+23

90

200

Convert 0.1 to a fraction

1/10

200
2,153,632 What place is the 1 in?
The HUNDRED THOUSANDS place
200

Round to the nearest HUNDRED. 834

800

200

Estimate 79-41

40

300

15%x5

0.75

300
4,215,266 What place is the 4 in?
The MILLIONS place
300
Round to the nearest HUNDRED THOUSAND. 42,633,624
42,600,000 (forty two million, six hundred thousand)
300

Estimate 240+239

400

400
Add 1/6+2/3

5/6

400
163,243,513 What place is the 6 in?
The TEN MILLIONS place
400
Round to the nearest TEN 93,564,366
93,564,370 (ninety three million, five hundred sixty four thousand, three hundred seventy)
400

Estimate 3389 - 1892

1000

500

(2+7x5) - 8^2 +(14.3 / 7.4)

-25.07

500
316,512,644 What place is the 3 in?
The HUNDRED MILLIONS place
500
Round to the nearest HUNDRED THOUSAND 1,968,888
2,000,000 (two million)
500

Estimate 982+158

1200

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