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812 + 197 + 78 is easy to use
812＋197＋78
=812+78+200-3
=890+200-3
=1190-3
=1187
Can you tell me how to calculate 15 from 3,88 times 4 = 15,52?
8×4=32
3×4=12
12 plus 3 is 15
How to calculate (37-15) × (8 + 160)
(37-15)×(8+160)
=(20 +2)×(20+1)×8
=8×(400+60+2)
=3200+480+16
=3696
8.27 - (15.4-7.9) simple calculation
It can't be calculated simply
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