Solve problems using knowledge of addition and subtraction of multiples of 10 | Maths

Starter quiz

140 - 60 = 80. Which number is the minuend in this equation?
- 140 ✓
- 60
- 80
140 - 60 = 80. 60 in this equation is the ______.
- minuend
- subtrahend ✓
- difference
Which is the best way to partition the subtrahend in this equation? 150 - 70 = 80
- Partition 70 into 10 and 60
- Partition 70 into 30 and 40
- Partition 70 into 50 and 20 ✓
What number is missing from this calculation? 120 − 70 = 120 − 20 − ______.
- '50' ✓
Which partitioned subtrahend will help you to bridge 100?
- 150 - 90
  
  ⇔
  
  90 = 50 + 40 ✓
- 180 - 90
  
  ⇔
  
  90 = 80 + 10 ✓
- 140 - 50
  
  ⇔
  
  50 = 40 + 10 ✓
- 120 - 50
  
  ⇔
  
  50 = 20 + 30 ✓
Match the missing subtrahends.
- 150 − _ = 90
  
  ⇔
  
  60 ✓
- 140 − _ = 90
  
  ⇔
  
  50 ✓
- 130 − _ = 90
  
  ⇔
  
  40 ✓
- 120 − _ = 90
  
  ⇔
  
  30 ✓