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Question
primary 5 | Maths
| Whole Numbers
2 Answers Below
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Please explain and tell me all the question
1. Brackets (settle everything within the brackets first before proceeding to the terms outside the brackets)
2. Multiplication/Division
3. Addition/Subtraction
So to illustrate for question 20,
810 - (200 / 8) + 56 x 13
= we do the terms inside brackets first
= 810 - 25 + 56 x 13
= we see the multiplication sign between 56 and 13 so we do this first
= 810 - 25 + 728
= now we are left with - and + so we do from left to right
= 785 + 728
= 1513
And for question 21,
545 - 76 + 5 - 486 / 3
= we do the division first which is in between 486 and 3
= 545 - 76 + 5 - 162
= now we are left with - and + so we do from left to right
= 469 + 5 - 162
= 474 - 162
= 312
You can try the rest on your own.
See 2 Answers
Basically you need to
1) solve the numbers in the brackets first
2) solve the divide and multiply from left to right
3) solve the plus and minus from left to right
I hope this helps