灵活计算，能用简便方法的要简算．
10.1×85 125×9.3×0.08 43.72×7.9+2.1×43.27
93÷0.25÷4 2.3+3.91÷（22﹣19.7） 7.92×6﹣18.45÷3
6.78+6.78×99 18﹣（1.4+1.25×2.4） 0.8×[13﹣（3.12+5.28）]．
灵活计算，能用简便方法的要简算．
10.1×85 125×9.3×0.08 43.72×7.9+2.1×43.27
93÷0.25÷4 2.3+3.91÷（22﹣19.7） 7.92×6﹣18.45÷3
6.78+6.78×99 18﹣（1.4+1.25×2.4） 0.8×[13﹣（3.12+5.28）]．
里面减去
与
的和．差是多少？
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=
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1﹣
+
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．
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﹣
= 2﹣
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= 1﹣
=
﹣0.25= 6+
+
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﹣
= 1﹣
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+
=．
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