Starter quiz
- In the following equation, which number is the minuend? 10 − 3 = 7
- 10 ✓
- 3
- 7
-
- Solve the following calculation using a mental strategy. 56 − 32 = ______
- '24' ✓
- Solve the following calculation using a mental strategy. ______ = 107 − 34
- '73' ✓
- Solve the following calculation using a mental strategy. 111 − 38 = ______
- '73' ✓
- Solve the following calculation using a mental strategy. ______ = 2,010 − 99
- '1,911' ✓
- Tick the expressions which are equivalent.
- 99 − 27 ✓
- 89 − 18
- 85 − 25
- 75 − 3 ✓
-
Exit quiz
- True or False? If the minuend is adjusted and the subtrahend stays the same then the difference has to be adjusted by the same amount.
- True ✓
- False
What were the difference and subtrahend adjusted by in the bar model shown? ______ p- '23' ✓
What were the difference and subtrahend adjusted by in the bar model shown?- '99,000' ✓
What were the difference and subtrahend adjusted by in the bar model shown?- '0.5' ✓
- Jun and Alex play an arcade game. Jun scores 35,003 points and Alex scores 17,002 points. At the end, Jun gets a penalty points reduction of 3,000 points. How much did Jun win by?
- '15,001' ✓
- At the gift shop on a residential week, Alex has £12.50 and Jun has £7.99 left to spend. Alex wins a £5 shop gift voucher in a dress-up-as-an-animal competition. How much more does Alex have now?
- '£9.51' ✓
Worksheet
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Presentation
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Video
Lesson Details
Key learning points
- If I increase the minuend, the difference increases by the same amount.
- If I decrease the minuend, the difference decreases by the same amount.
- A number line can be used to represent the change in the minuend.
Common misconception
Children might struggle to describe the changes accurately using mathematical language.
Make good use of your learning walls here to display the key vocabulary and stem sentences for the children to use for the description of the changes in the equations.
Keywords
Minuend - The minuend is the number being subtracted from.
Subtrahend - A subtrahend is a number subtracted from another.
Difference - The difference is the result after subtracting one number from another.
Constant - A constant is a quantity that has a fixed value that does not change or vary, such as a number.
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