Jibolo !!!!!'s answer to Priyanka's Primary 6 Maths Algebra Singapore question.
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Method 1
Date Posted:
4 years ago
Can you please show me guess and check method??
While arrange in 13s, there are +6, while arrange in 15s, there are -4, the difference is 10. What caused the difference? The difference for 1row is 15-13=2, there must be 10/2 = 5rows. Hope this helps. I don’t know guess and check method.
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