Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
Primary 1 | Maths
3 Answers Below
Anyone can contribute an answer, even non-tutors.
Help pl
Date Posted: 3 years ago
Views: 948
In each big square, the sum of a pair of two diagonally opposite numbers is the same as the sum of the other pair.
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
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
Thank u so much..
See 3 Answers
Tq
Answered in main comments
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
So this is a number pattern puzzle. Numbers going from left to right will have the same number pattern. In the first box, 5 -1 =4, which is the number to the right. 3-1=2, which proves our theory correct.
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.
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.
Date Posted:
3 years ago
360 Tutoring Program