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primary 5 | Maths
| Whole Numbers
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Date Posted: 2 years ago
Views: 156
250+120 = 370
left【in the end】
T:S:T+S = 6:1:7 = 12u : 2u : 14u
at first
T:S:T+S = 1:1:2 = 7u+185 : 7u+185 : 14u+370
for T → 12u - 7u -185 = 120
u = (185-120)÷(12-7) = 13
12u = 12×13 = 156 (Ans)
left【in the end】
T:S:T+S = 6:1:7 = 12u : 2u : 14u
at first
T:S:T+S = 1:1:2 = 7u+185 : 7u+185 : 14u+370
for T → 12u - 7u -185 = 120
u = (185-120)÷(12-7) = 13
12u = 12×13 = 156 (Ans)
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welm, model method is attached too
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welm
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