问题
解答题
脱式计算:
360+25×4
(38+82)÷4
33+27×3
850-250×3.
答案
(1)360+25×4
=360+100
=460;
(2)(38+82)÷4
=120÷4
=30;
(3)33+27×3
=33+87
=120;
(4)850-250×3
=850-750
=100.
脱式计算:
360+25×4
(38+82)÷4
33+27×3
850-250×3.
(1)360+25×4
=360+100
=460;
(2)(38+82)÷4
=120÷4
=30;
(3)33+27×3
=33+87
=120;
(4)850-250×3
=850-750
=100.