Page 17 - prim 4 كامل

Delta Modern Language Schools
Maths Department
Prim 4 2023-2024

Unit ( 2 ) L4,5: Subtraction strategies

1) Solve the following problem using counting down using
number line:-
a) 675 – 432 = ……….

2) Solve the following problems using strategy of your choice: -
a) 624
- 153
…………..

b) 729
- 299
……………

3) Use the standard subtraction algorithm to solve the problems.
Then round each number to the nearest thousand to check the
reasonableness of your answer:-

a) 6543 …………… b) 1654 ……………
- 4654 - …………… - 1076 - …………..
…………..
………… …………… ………….

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