2.4x2.5x12.5简便运算?
12个回答
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2.4×2.5×12.5
=4×0.6×2.5×12.5
=4×2.5×(0.6×12.5)
=10×7.5
=75
=4×0.6×2.5×12.5
=4×2.5×(0.6×12.5)
=10×7.5
=75
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2.4X2.5x12.5
=3x4x0.2x2.5X12.5
=3x0.2x(4×2.5)x12.5
=3X0.2x10x12.5
=3x25
=75
=3x4x0.2x2.5X12.5
=3x0.2x(4×2.5)x12.5
=3X0.2x10x12.5
=3x25
=75
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2.4Ⅹ2.5x12.5
=(0.3入2.5)x(8x12.5)
=0.75ⅹ100
=75
=(0.3入2.5)x(8x12.5)
=0.75ⅹ100
=75
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=(0.3x8)x2.5x12.5
=(8x12.5)x(0.3X2.5)
=100x0.75
=75
=(8x12.5)x(0.3X2.5)
=100x0.75
=75
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2.4×2.5×12.5
=3×0.8×2.5×12.5
=3×2.5×(0.8×12.5)
=7.5×10
=75
=3×0.8×2.5×12.5
=3×2.5×(0.8×12.5)
=7.5×10
=75
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