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Tuesday, July 9, 2013

Addition and Subtraction

I am learning to solve Addition and Subtraction using at Level 2.


This task is about solving maths problems.

1.
There are 21 people at a beach, and 13 more people arrive.
Show how to work out how many people are at the beach altogether
20 + 10 is 30   
1 + 3 is 4  34
Answer is 34



2
Two classes go on camp together. One class has 47 students and the other has 38.
Show how to work out how many students go on camp
40 + 40 is 80 - 10 which is 70
then 7+7 IS 14 + 1
WHICH is 15
85.....

3.   A farmer has 63 cows.  He buys 39 more cows.
Show how to work out how many cows he has altogether.



63 + 39 -
60 + 30 IS 90
9 + 3 is 12
90 + 12 is 120


THE ANSWER IS


120


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