列式632÷6,把6看成2×3,使其632÷(2×3),打开括号后要改变运算符号,即632÷2÷3,用632除以2商得316,再除以3,即316÷3,用316乘上3的倒数1/3,即316×1/3,
用整数316乘分数1/3的分子1,积316做分子分母3不变,得数是316/3,列式计算,632÷6=632÷2÷3=316÷3=316×1/3=316/3
列式632÷6,把6看成2×3,使其632÷(2×3),打开括号后要改变运算符号,即632÷2÷3,用632除以2商得316,再除以3,即316÷3,用316乘上3的倒数1/3,即316×1/3,
用整数316乘分数1/3的分子1,积316做分子分母3不变,得数是316/3,列式计算,632÷6=632÷2÷3=316÷3=316×1/3=316/3