Use knowledge of column addition and subtraction to calculate with decimals: tenths and hundredths | Maths

Starter quiz

Tick all the expressions that would make or bridge 10.
- 7 + 5 ✓
- 3 + 8 ✓
- 6 + 4 ✓
- 5 + 4
- 8 + 1
Order the expressions from the smallest amount to the largest amount.
- 1
  
  ⇔
  
  6 + 7
- 2
  
  ⇔
  
  2 + 9
- 3
  
  ⇔
  
  14 – 5
- 4
  
  ⇔
  
  5 + 3
- 5
  
  ⇔
  
  12 − 6
Complete the column addition and write in the answer.
- '9.1' ✓
Complete the column subtraction and write in the answer.
- '2.9' ✓
Tick the calculations that require a regrouping.
- 6.7 – 4.2
- 5.4 – 3.5 ✓
- 17.7 – 8.2 ✓
Tick the correct explanation of the mistake that has been made.
- The number of ones that have been regrouped is incorrect. ✓
- They did not need to regroup.
- They have added instead of subtracted.
- The decimal points are not lined up correctly.