The Four Basic Operations - JSS1 Mathematics Past Questions and Answers - page 1
What is the result of subtracting 154 from 572?
428
318
418
372
If you add 145 and 210, what is the result?
355
365
345
375
If you subtract 87 from 345, what is the result?
278
268
288
What is the sum of 145 and 210?
145
+ 210
------
355
Answer: 145 + 210 = 355
What is the result of subtracting 87 from 345?
345
- 87
------
258
Borrow from the hundreds place:
3(4)5 -> (3-1) = 2, 1 in tens place borrowed, becomes 10+4-7 = 7
- 87 -> 10 - 8 = 2 and then minus 7 becomes 7
------
258
Answer: 345 - 87 = 258
What is 48 multiplied by 6?
48
x 6
------
288
Multiply each digit:
Units: 8 x 6 = 48 (write 8 in the units place and carry over 4 to the tens place).
Tens: 4 x 6 = 24, plus the carried over 4 = 28.
Answer: 48 x 6 = 288
What is 912 divided by 4?
____
4 | 912
4 goes into 9 two times (4 x 2 = 8, subtract from 9 to get 1):
2__
4 | 912
- 8
1
Bring down the next digit (1):
22_
4 | 912
- 8
----
11
4 goes into 11 two times (4 x 2 = 8, subtract from 11 to get 3):
22__
4 | 912
- 8
----
31
Bring down the next digit (2):
228
4 | 912
- 8
----
112
-112
0
Answer: 912 ÷ 4 = 228