Math

Powers of 10

200

90x10²

9,000

400

10⁵

100,000

600

5x2x10²

1,000

800

10/10³

0.01

1000

2x(5x5³⁾

1,250

Rounding Decimals

200

Round to the nearest tenth: 0.991

1.0

400

Round to the nearest tenth: 0.671

0.7

600

Round to the nearest hundredth: 2.6852

2.69

800

Bonus!!

round to the nearest thousandth:1.6855     

1.686

1000

Round to nearest thousandth: 10.68523

10.685

Word Form

200

Word Form: 206

two hundred six

400

Word Form: 1.3

one and three tenths

600

Word Form: 22.53

twenty two and fifty three hundredths

800

Word Form: 1050.2

One thousand fifty and two tenths 

1000

Word form: 1.53563

One and fifty three thousand five hundred sixty three ten thousandths

Adding Decimals

200

Add: 5.3+1.2

6.5

400

Add: 1.35+2.5

3.85

600

Add: 1.25+3.52

4.77

800

Add: 1.325+0.993

2.318

1000

Bonus!

Add: 1.789+0.321

2.11 or 2.110

Subtracting Decimals

200

Subtract:1.5-0.3

1.2

400

Subtract: 10.97-0.978

9.992

600

Subtract: 1.53-0.6

0.93

800

Subtract: 1.6-0.62

0.98

1000

Subtract: 10-0.384

9.716