Bridge 100 by adding in multiples of 10 | Maths | Quizalize & Oak National Academy

Starter quiz

What is the missing part on the bar model?
- 120
- 100
- 20 ✓
What is the missing whole on the bar model?
- 132
- 130
- 150 ✓
- 120
Use this bar model. Which addition calculations are correct?
- 9 tens = 19 tens + 10 tens
- 9 tens + 10 tens = 19 tens ✓
- 19 tens = 10 tens + 9 tens ✓
- 9 tens + 19 tens = 10 tens
170 = 40 + 100 + ______. What is the missing part?
- '30' ✓
Sophie buys some ribbon that is 170 cm long. She gives 70 cm to her friend. How much does she have left ? ______ cm.
- '100' ✓
Which calculations could represent this bar model?
- 140 = 40 + 100 ✓
- 100 - 140 = 40
- 100 + 40 = 140 ✓
- 100 = 140 - 40 ✓
- 100 - 40 = 140