计算下面各题,怎样简便就怎样计算,要写出必要的计算过程.①44×25②6200÷25÷4③65×5-35÷5④362-(
计算下面各题,怎样简便就怎样计算,要写出必要的计算过程.①44×25②6200÷25÷4③65×5-35÷5④362-(16+27)×4⑤51.27-8.66-1.34⑥...
计算下面各题,怎样简便就怎样计算,要写出必要的计算过程.①44×25②6200÷25÷4③65×5-35÷5④362-(16+27)×4⑤51.27-8.66-1.34⑥75+12.7+25+6.3.
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①44×25, =11×4×25, =11×(滚禅4×25),轿蔽 =11×100, =1100; ②6200÷25÷4, =6200÷(25×4), =6200÷100, =62; ③65×5-35÷5, =325-7, =318; ④362-(16+27)×4, =362-43×4, =362-172, =190; ⑤51.27-8.66-1.34, =51.27-(8.66+1.34), =51.27-10,大帆尘 =41.27; ⑥75+12.7+25+6.3, =(75+25)+(12.7+6.3), =100+19, =119. |
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