4.8X2.7 6.2x1.4 3.5x8.6简便运算
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4.8×2.7+6.2×1.4+3.5×8.6
=2.7×（4.8+1.4）+3.5×（1.4+8.6）
=2.7×6.2+3.5×10
=3×6.2-0.3×6.2+35
=35+18.6-1.86
=53.6-2+0.14
=51.74
=2.7×（4.8+1.4）+3.5×（1.4+8.6）
=2.7×6.2+3.5×10
=3×6.2-0.3×6.2+35
=35+18.6-1.86
=53.6-2+0.14
=51.74
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4.8x2.7
=(5-0.2)x2.7
=13.5-0.54
=12.96
6.2×1.4
=(6+0.2)×1.4
=8.4+0.28
=8.68
3.5×8.6
=(4-0.5)×8.6
=4×8.6-0.5×8.6
=34.4-4.3
=30.1
=(5-0.2)x2.7
=13.5-0.54
=12.96
6.2×1.4
=(6+0.2)×1.4
=8.4+0.28
=8.68
3.5×8.6
=(4-0.5)×8.6
=4×8.6-0.5×8.6
=34.4-4.3
=30.1
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简便计算
4.8X2.7 十6.2x1.4十 3.5x8.6
=4.8X2.7 十(2.7+3.5)x1.4 十3.5x8.6
=(4.8十1.4)x2.7+3.5x(1.4十8.6)
=6.2x2.7+3.5x10
=16.74十35
=51.74
4.8X2.7 十6.2x1.4十 3.5x8.6
=4.8X2.7 十(2.7+3.5)x1.4 十3.5x8.6
=(4.8十1.4)x2.7+3.5x(1.4十8.6)
=6.2x2.7+3.5x10
=16.74十35
=51.74
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