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Primary 4 | Maths
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Date Posted: 4 years ago
Views: 523
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Let the numbers be equated to the following :
Greater number : 7 units
Smaller number : 1 unit
Difference = 6 units
Difference also = 2400
So 6 units = 2400
1 unit = 2400 ÷ 6 = 400
Sum of the two numbers
= 1 unit + 7 units
= 8 units
= 8 x 400
= 3200
Greater number : 7 units
Smaller number : 1 unit
Difference = 6 units
Difference also = 2400
So 6 units = 2400
1 unit = 2400 ÷ 6 = 400
Sum of the two numbers
= 1 unit + 7 units
= 8 units
= 8 x 400
= 3200
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Model way :
Greater number : ⬜⬜⬜⬜⬜⬜⬜ or 7 x ⬜
Smaller number : ⬜
Difference = ⬜⬜⬜⬜⬜⬜ or 6 x ⬜ = 2400
So 1 ⬜ = 2400 ÷ 6 = 4000
Sum of numbers
= ⬜⬜⬜⬜⬜⬜⬜⬜ Or 8 x ⬜
= 8 x 400
= 3200
Greater number : ⬜⬜⬜⬜⬜⬜⬜ or 7 x ⬜
Smaller number : ⬜
Difference = ⬜⬜⬜⬜⬜⬜ or 6 x ⬜ = 2400
So 1 ⬜ = 2400 ÷ 6 = 4000
Sum of numbers
= ⬜⬜⬜⬜⬜⬜⬜⬜ Or 8 x ⬜
= 8 x 400
= 3200
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