Math Review 6767676767

Adding Decimals

100

12.6+14.7=

27.3

200

28.9+42.3

71.2

300

76.9+8.53

85.43

400

9.401+865.3

874.701

500

909.987+430.8944

1340.8814

Subtracting Decimals

100

87.3-23.1

64.2

200

42.5-27.6

14.9

300

97.2-4.89

92.31

400

83.236-15.77

67.466

500

684.568-96.54

588.028

Place Value Forms

100

What is the Expanded form of 12.15

10+2+.1+.05

200

What is the word form of 12.15

Twelve and fifteen hundredths

300

What is the Standard form of "50+4+.3+.05+.008

54.358

400

Complete all 3 forms

Standard form: 25.03

Expanded form:

Word form:

Standard form: 25.03

Expanded form: 20+5+.03

Word form: twenty five and 3 hundredths

500

Complete all 3 forms

Standard form: 

Expanded form:

Word form: Thirty four and six hundred twenty seven Thousandths

Standard form: 34.627

Expanded form: 30+4+.6+.02+.007

Word form: Thirty four and six hundred twenty seven Thousandths

Multiply Whole Numbers

100

50x400=

20000

200

25x6=

150

300

45x63=

2835

400

456x75=

34200

500

634x435=

275790

Multiply Decimals

100

1.2x3.3=

3.96

200

2x3.35=

6.7

300

46.5x0.23

10.695

400

1.35x2.5=

3.375

500

BONUS

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Bonus 500 pts