问题
解答题
快乐组合.(看哪组结果是相同的,连一连)
22×35+30
29×18-222
23×17+9
15×(17+3)
32×(134-109)
16×(12+13)
答案
(1)22×35+30,
=770+30,
=800;
(2)29×18-222,
=522-222,
=300;
(3)23×17+9,
=391+9,
=400;
(4)15×(17+3),
=15×20,
=300;
(5)32×(134-109),
=32×25,
=800;
(6)16×(12+13),
=16×25,
=400.
故答案为:
.