6.3*10.3用简便方法计算1.2*0.98用简便方法计算
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![6.3*10.3用简便方法计算1.2*0.98用简便方法计算](/uploads/image/z/1074090-66-0.jpg?t=6.3%2A10.3%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%971.2%2A0.98%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97)
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6.3*10.3用简便方法计算1.2*0.98用简便方法计算
6.3*10.3用简便方法计算
1.2*0.98用简便方法计算
6.3*10.3用简便方法计算1.2*0.98用简便方法计算
6.3×10.3
=(6+0.3)(10+0.3)
=60+(10+6)×0.3+0.09
=60+4.8+0.09
=64.89
1.2×0.98
=1.2×(1-0.02)
=1.2-0.024
=1.176