2.25 × 7.2 + 2.8 △ 1 / 9 simple operation!

Simple operation of 9.7 △ 1.25 △ 0.8

9.7÷1.25÷0.8
=9.7÷(1.25×0.8)
=9.7÷1
=9.7

How to calculate 2.3 * 7.6 + 76 * 0.77 simply

2.3*7.6+76*0.77
=2.3*7.6+7.6*7.7
=(2.3+7.7)*7.6
=10*7.6
=76

How can 9 * 77 + 11 * 37 be easily calculated?

9×77＋11×37
＝9×7×11＋11×37
＝63×11＋11×37
＝(63＋37)×11
＝100×11
＝1100

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