536-298用不同的方法计算

用简便方法计算. 3260-997;    360÷45;    88×25;    536+298.
2024-12-16 16:59:37
推荐回答(1个)
回答1:

(1)3260-997
=3260-(1000-3)
=3260-1000+3
=2260+3
=2263;

(2)360÷45
=360÷9÷5
=40÷5
=8;

(3)88×25
=22×4×25
=22×(4×25)
=22×100
=2200;

(4)536+298
=536+(300-2)
=536+300-2
=836-2
=834.