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primary 6 | Maths
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aurelia
Aurelia

primary 6 chevron_right Maths chevron_right Singapore

I need to do this question using units and parts method

Date Posted: 1 month ago
Views: 128
sstrike
Sstrike
1 month ago
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

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Clinton
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Hope this helps!

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