Adding and Subtracting Decimals
tenths, hundredths, thousandths….
Decimals - 1
Highlight which one:
ADD / SUBTRACT
John needs $2.50.
He has $0.75.
How much more money does he need?
Show your working out here:
Decimals - 2
Highlight which one:
ADD / SUBTRACT
A swimmer is in a 100 meter race.
She swims the first half of the race in 32.34 seconds and the last half of the race in 34.83 seconds.
How long did it take her to swim the whole race?
Show your working out here:
Decimals - 3
Highlight which one:
ADD / SUBTRACT
Jane buys an apple for $0.50 and pays with a $5.00 note.
How much change will she get?
Show your working out here:
Decimals - 5
Highlight which one:
ADD / SUBTRACT
One pencil weighs 28.2 grams.
How much do 5 pencils weigh?
Show your working out here:
Decimals - 4
Highlight which one:
ADD / SUBTRACT
John walks 0.7 kilometers to school and Nina walks 0.4 kilometers to school.
How much farther does John walk than Nina?
Show your working out here:
Adding decimals (1 decimal place practice)
Find the sum.
1. 9.6 + 9.7 =
2. 2.7 + 4.8 =
3. 7.8 + 2.6 =
4. 6.1 + 1.1 =
5. 4.0 + 4.8 =
6. 8.4 + 9.5 =
7. 3.9 + 1.6 =
8. 8.4 + 3.6 =
9. 1.5 + 8.3 =
10. 6.2 + 9.7 =
11. 4.2 + 0.2 =
12. 7.2 + 3.7 =
13. 8.2 + 6.2 =
14. 3.4 + 3.0 =
15. 5.5 + 3.1 =
16. 8.7 + 8.1 =
17. 8.2 + 9.8 =
18. 1.6 + 7.8 =
19. 5.7 + 7.9 =
20. 3.7 + 0.3 =
Adding decimals: 2 decimal places
1. 9.7 + 1.70 =
2. 0.41 + 8.3 =
3. 0.92 + 1.82 =
4. 0.97 + 19.1 =
5. 4.9 + 9.9 =
6. 1.10 + 13.1 =
7. 5.9 + 15.6 =
8. 13.8 + 1.67 =
9. 0.19 + 7.1 =
10. 1.76 + 9.1 =
11. 0.52 + 1.37 =
12. 1.86 + 0.34 =
13. 0.93 + 1.07 =
14. 1.08 + 0.42 =
15. 12.1 + 10.9 =
16. 0.33 + 1.74 =
17. 20.0 + 0.11 =
18. 0.77 + 14.6 =
19. 1.46 + 0.33 =
20. 0.38 + 11.3
Adding decimals - 2 digit missing addend
1) _____ + 0.74 = 4.14
2) _____ + 1.2 = 4
3) _____ + 4.9 = 5.1
4) 2.5 + _____ = 3.1
5) _____ + 0.8 = 2.8
6) _____ + 0.35 = 3.05
7) _____ + 5.7 = 6
8) 3.1 + _____ = 3.5
9) _____ + 1.84 = 6.24
10) _____ + 3.4 = 4.77
11) _____ + 2.9 = 4.4
12) _____ + 3.9 = 8.9
13) 1.0 + _____ = 6
14) _____ + 0.8 = 1.7
15) 2.5 + _____ = 5.87
16) _____ + 0.5 = 3.7
Adding decimals up to 3 decimal places
1. 1.08 + 1.67 =
2. 1.12 + 1.85 =
3. 0.195 + 1.06 =
4. 0.37 + 0.45 =
5. 0.46 + 0.168 =
6. 0.096 + 0.14 =
7. 0.134 + 0.193 =
8. 1.82 + 0.013 =
9. 0.023 + 1.65 =
10. 1.53 + 1.76 =
11. 1.40 + 0.108 =
12. 0.033 + 0.032 =
13. 0.38 + 1.70 =
14. 0.045 + 0.118 =
15. 0.190 + 0.93 =
16. 0.070 + 1.70 =
17. 0.76 + 0.173 =
18. 0.54 + 0.052 =
19. 0.197 + 0.175 =
20. 0.088 + 0.189
Subtracting decimals (1 and 2 decimal places)
Find the difference.
1. 0.95 - 0.71 =
2. 0.77 - 0.58 =
3. 8.5 - 2.1 =
4. 0.80 - 0.18 =
5. 5.5 - 0.41 =
6. 9.2 - 4.2 =
7. 0.93 - 0.69 =
8. 0.66 - 0.58 =
9. 6.6 - 0.05 =
10. 4.7 - 0.8 =
11. 3.8 - 0.20 =
12. 0.37 - 0.09 =
13. 0.61 - 0.02 =
14. 6.7 - 3.7 =
15. 2.1 - 1.0 =
16. 9.1 - 0.52 =
17. 7.9 - 3.5 =
18. 8.1 - 2.7 =
Subtracting decimals (1 decimal place)
1) 6.5 – _____ = 5.5
2) _____ – 1.1 = 8.8
3) _____ – 1.0 = 2
4) _____ – 1.5 = 8.6
5) _____ – 0.3 = 3.7
6) _____ – 0.3 = 2.4
7) _____ – 1.3 = 1.1
8) _____ – 0.2 = 1.8
9) _____ – 1.5 = 4.5
10) 10 – _____ = 8.4
11) _____ – 0.9 = 5.4
12) _____ – 0.4 = 2
13) _____ – 0.1 = 5.4
14) 5 – _____ = 4.1
15) 5.4 – _____ = 4.4
16) 3 – _____ = 2.9