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Primary 1 | Maths
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First square : 3 + 4 = 7, 5 + 2 = 7
Second square : 10 + 3 = 13, 6 + 7 = 13
So, for the third square,
4 + 11 = 15, 7 + ? = 15
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Flipping the direction means you will need to change a positive number pattern to a negative or vice versa. Using the same example, if instead of going left to right I want to go right to left, I will use a +1 instead of a -1 (for the first box)
Then when we look at the 3rd box, the pattern from left to right is +4 (7+4=11)
Means that the missing number is 4+4 also.
The pattern from down to up is -3 (7-3=4) so doing 11-3 still gives us 8. Proving we are correct.