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What problem is Chen checking 152x4=608+2=610

User Blackdog
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1 Answer

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the +2 is a reminder to add when he multiply 4*1 (4*1=4+2=6)
4*2=8
4*5=20 (so he writes the 0 with a remainder of 2)
4*1=4+2=6
so,
152x4= 608
User Ktutnik
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