题目内容
| 计算下列各题,能简算的要简算. (307-208)÷11 | 276-178+22 | 25×33×4 |
| 18×(537-488) | 420÷14÷5 | 184+45+16. |
(1)(307-208)÷11,
=99÷11,
=9;
(2)276-178+22,
=276+22-178,
=298-178,
=120;
(3)25×33×4,
=25×4×33,
=100×33,
=3300;
(4)18×(537-488),
=18×49,
=882;
(5)420÷14÷5,
=420÷(14×5),
=420÷70,
=6;
(6)184+45+16,
=184+16+45,
=200+45,
=245.
=99÷11,
=9;
(2)276-178+22,
=276+22-178,
=298-178,
=120;
(3)25×33×4,
=25×4×33,
=100×33,
=3300;
(4)18×(537-488),
=18×49,
=882;
(5)420÷14÷5,
=420÷(14×5),
=420÷70,
=6;
(6)184+45+16,
=184+16+45,
=200+45,
=245.
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