问题
解答题
脱式计算
|
答案
(1)34×20-840÷2
=680-420
=260;
(2)988÷(100-74)
=988÷26
=38;
(3)406-384÷48+562
=406-8+562
=960;
(4)25×18÷15+356
=450÷15+356
=30+356
=386.
脱式计算
|
(1)34×20-840÷2
=680-420
=260;
(2)988÷(100-74)
=988÷26
=38;
(3)406-384÷48+562
=406-8+562
=960;
(4)25×18÷15+356
=450÷15+356
=30+356
=386.