12-3.7x2.4怎样简便计算
12-3.7x2.4怎样简便计算
12-3.7x2.4
=2.4x5-3.7x2.4
=(5-3.7)x2.4
=1.3x2.4
=3.12
12-3.7x2.4的简便计算 怎么算呢
=2.4×5-3.7×2.4
=2.4×(5-3.7)
=2.4×1.3
=3.12
2.4x2.5x3.7的简便计算
2.4x2.5x3.7
=2.4x(5÷2)x(3+0.7)
=2.4×5÷2×(3+0.7)
=12÷2×(3+0.7)
=6×3+6×0.7
=18+4.2
=22.2
29.4x0.63+3.7x2.94的简便计算
29.4x0.63+3.7x2.94
=2.94x6.3+3.7x2.94
=2.94x(6.3+3.7)
=2.94x10
=29.4
愿对你有所帮助!
0.38+9.62÷3.7x5.4怎样简便计算
0.38+9.62÷3.7x5.4
=0.38+2.6x5.4
=0.38+14.04
=14.42
用简便计算0.77x0.8+0.11x2.4
0.77x0.8+0.11x2.4
=0.11x7x0.8+0.11x2.4
=0.11x5.6+0.11x2.4
=0.11x(5.6+2.4)
=0.11x8
=0.88
简便计算 1.7x2.8+2.4x5.4
1.7x2.8+2.4x5.4
=0.4×(1.7×7+6×5.4)
=0.4×(11.9+32.4)
=0.4×44.3
=17.72
3.7X 10.1简便计算
3.7X 10.1简便计算
=3.7×10+3.7
=37+3.7
=40.7
0.25x2.4x5.2怎样简便计算,
0.25*2.4*5.2=0.25*(4*0.6)*5.2=0.25*4*0.6*5.2=1*0.6*5.2=3.12
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