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Decimal Addition & Subtraction

Decimal Addition & Subtraction

Which is the odd answer out to each of these questions? You will probably want some paper to work out on. Don't forget when you set them out to keep the decimal point under each other and pad out at the end of the number with zeros to make it easier to work out, e.g. 8 - 5.67 = 8.00 - 5.67

1. (a) 38.7 + 1.9 + 3.25

(b) 25 + 1.65 + 17.1  
(c) 32.35 + 1.95 + 9.55
2. (a)

21.25 + 12 + 3.85
(b)

24.325 + 9.2 + 3.575
(c)

19.3 + 4.35 + 13.55

  
3. (a) 4.375 + 0.585 + 12.32
(b) 8.36 + 5.325 + 3.495
(c)

9.8 + 5 + 2.38

  
4. (a) 3.27 + 5.19 + 11.38

(b) 8 + 1.345 + 10.395
(c) 12.3 + 0.975 + 6.465  
5. (a) 10.2 + 1.065 + 15.005

(b) 11.32 + 5 + 9.85
(c) 6.005 + 0.845 + 19.42  
6. (a) 25.29 - 11.56

(b) 37.13 - 23.5
(c) 45.2 - 31.47
7. (a) 8.325 - 3.65

(b) 9.34 - 4.665
(c) 8 - 3.425
8. (a) 13.285 - 9.29

(b) 7.6 - 3.615
(c) 10.36 - 6.375

9.

 (a)

14.27 - 9.145
(b) 13.065 - 7.84
(c) 5.6 - 0.475
10. (a) 153.23 - 28.78

(b) 159.4 - 35.05
(c) 132 - 7.65
If you make any mistakes, try again!
 

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