1.08×48+56.8×1.2 简便运算?
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![1.08×48+56.8×1.2 简便运算?](/uploads/image/z/27075-3-5.jpg?t=1.08%C3%9748%EF%BC%8B56.8%C3%971.2+%E7%AE%80%E4%BE%BF%E8%BF%90%E7%AE%97%3F)
1.08×48+56.8×1.2 简便运算?
1.08×48+56.8×1.2 简便运算?
1.08×48+56.8×1.2 简便运算?
1.08×48+56.8×1.2
=43.2×1.2+56.8×1.2
=(43.2+56.8)×1.2
=100×1.2
=120
1.08×48+56.8×1.2……………… 变一变,就简便
=1.08×48+1.42×(4×12)
=(1.08+1.42)×48
=2.5×4×12
=10×12
=120
原式=1.08×(50-2)+56.8×(1+0.2)
=1.08x4x12+56.8x1.2
=1.08x4x10x1.2+56.8x1.2
=43.2x1.2+56.8x1.2
=(43.2+56.8)x1.2
=120