Simple calculation of (2 / 7 + 5 / 8 × 8 / 7) △ 9 / 35

（2/7+5/8×8/7）÷9/35
=（2/7+5/7）÷9/35
=1÷9/35
=35/9

How to calculate 5.89 - (5.89-2.35) + 7.65 simply?

5.89-(5.89-2.35)+7.65
=(5.89－5.89)＋(2.35+7.65)
=0＋10
=10

Simple calculation: (- 5.35) * (- 3) + 5.35 * (- 7) + 5.35 * 4

(-5.35)*(-3)+5.35*(-7)+5.35*4=5.35*(3)+5.35*(-7)+5.35*4
=5.35*（3-7+4）
=0

Simple calculation for 125 * 25 * 50 * 40 * 4 * 8 * 2 * 5

125*25*50*40*4*8*2*5
=125*8*25*40*50*2*4*5
=1000*1000*100*20
=2000000000

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