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Question
primary 5 | Maths
| Whole Numbers
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Y: 1u
M: 500 - 1u + 140 - 1u = 640 - 2u
[ bcos Y&M has 140 more than K ]
[ bcos K&M has 220 more than Y ]
500 - 1u + 640 - 2u = 1u + 220
1u = 230
M has 180
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