 # 3.02 Adding and subtracting decimals

Worksheet
1

Evaluate:

a

0.3 + 0.1

b

3.8 + 4.6

c

8.7 + 4.8

d

0.7 + 0.01

e

0.2 + 0.36

f

8.8 + 5.11

g

0.35 + 0.21

h

1.8 + 3.9

2

Evaluate:

a

2.414 + 1.586

b

8.174 + 6.074

c

9.99 + 50.39

d

84.03 + 64.08

e

91.71 + 76.55

f

207.791 + 120.201

g

221.219 + 716.225

h

644.969 + 229.713

i

886.796 + 447.385

j

0.16 + 0.89 + 0.76

k

0.919 + 0.829 + 0.117

l

8.23 + 6.52 + 9.16

m

4.027 + 1.39 + 1.306

n

12.1 + 43.02 + 31.004

3

4

Increase 13.245 by 4.62.

5

Find the amount that is \$8.95 greater than \$24.88.

6

Find the total of the numbers 0.325, 6.05, 12.066 and 0.004.

7

Calculate the sum of the numbers 1.55, 3.05, 105 and 0.05.

Subtraction
8

Evaluate:

a

9.9 - 8

b

5.9 - 1.7

c

5.4 - 2.3

d

8.5 - 7.2

e

10.6 - 4.9

f

0.83 - 0.61

g

0.75 - 0.51

h

3.1 - 0.6

9
a

8.79 - 4.5

b

59 - 2.57

c

9.59 - 1.7

d

6.19 - 5.31

e

0.587 - 0.231

f

64.51 - 53.47

g

81.59 - 45.71

h

73.893 - 64.764

10

Decrease 108.24 by 14.72.

11

Find the number that is 6.75 less than 27.18.

12

Find the difference between \$91.33 and \$22.44.

13

Reduce 132.035 by 56.122.

14

Evaluate 9.000000001 - 7.999999999.

Magic squares
15

A magic square is a square where every row, column and diagonal adds up to the same 'magic' number. Complete the following magic squares, given the magic number:

a

Magic number is 3.3

b

Magic number is 9.0

c

Magic number is 6.0

d

Magic number is 10.2