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primary 6 | Maths
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I need to do this question using units and parts method
Date Posted: 1 month ago
Views: 128
B (85) → J
B:J:B+J=1u:1u:2u
J (85) → B
B:J:B+J=2p:1p:3p
actual B →
2p-85=1u+85
↓
2p-1u=2×85
↓
4p-2u=4×85
2u=3p
1p = 4×85 = 340
1u=3p÷2=3×2×85 = 510
actual
B →
2p-85=1u+85 = 595
J →
1p+85=1u-85 = 425
B:J:B+J=1u:1u:2u
J (85) → B
B:J:B+J=2p:1p:3p
actual B →
2p-85=1u+85
↓
2p-1u=2×85
↓
4p-2u=4×85
2u=3p
1p = 4×85 = 340
1u=3p÷2=3×2×85 = 510
actual
B →
2p-85=1u+85 = 595
J →
1p+85=1u-85 = 425
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Date Posted:
1 month ago
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