4.44×9.8×2.5怎么简便计算?
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解:4.44x9.8x2.5
=(4+0.4+0.04)x2.5x9.8
=(10+1+0.1)x9.8
=98+9.8+0.98
=108.78
=(4+0.4+0.04)x2.5x9.8
=(10+1+0.1)x9.8
=98+9.8+0.98
=108.78
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解:4.44X9.8X2.5
= 4.44X9.8X0.5X5
= 4.44X5X9.8X0.5
= 22.2X 4.9
= 22.2X(5-0.1)
=22.2X5-22.2X0.1
=111-2.22
= 108.78
= 4.44X9.8X0.5X5
= 4.44X5X9.8X0.5
= 22.2X 4.9
= 22.2X(5-0.1)
=22.2X5-22.2X0.1
=111-2.22
= 108.78
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【(4+0.4+0.04)x2.5】x9.8
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4.44*9.8*2.5
=4*1.11*9.8*2.5
=4*2.5*1.11*9.8
=10*1.11*9.8
=11.11*9.8
=11.11*(10-0.2)
=111.1-2.222
=108.8.878
=4*1.11*9.8*2.5
=4*2.5*1.11*9.8
=10*1.11*9.8
=11.11*9.8
=11.11*(10-0.2)
=111.1-2.222
=108.8.878
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4.44×9.8×2.5
=1.11x4x9.8x2.5
=1.11x9.8x10
=1.11x(100-2)
=111-2.22
=108.78
=1.11x4x9.8x2.5
=1.11x9.8x10
=1.11x(100-2)
=111-2.22
=108.78
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