问题
解答题
递等式计算.
197-12×9+61
38+160÷(40-30)
(234-195)×12÷26.
答案
(1)197-12×9+61
=197-108+61
=89+61
=150;
(2)38+160÷(40-30)
=38+160÷10
=38+16
=54;
(3)(234-195)×12÷26
=39×12÷26
=468÷26
=18.
递等式计算.
197-12×9+61
38+160÷(40-30)
(234-195)×12÷26.
(1)197-12×9+61
=197-108+61
=89+61
=150;
(2)38+160÷(40-30)
=38+160÷10
=38+16
=54;
(3)(234-195)×12÷26
=39×12÷26
=468÷26
=18.