计算下面各题.(能简便的要用简便方法计算) 332+68÷4 (574-442)÷12 24×125 114+48+86+52 469
计算下面各题.(能简便的要用简便方法计算)332+68÷4(574-442)÷1224×125114+48+86+52469×5×2480÷15÷4....
计算下面各题.(能简便的要用简便方法计算) 332+68÷4 (574-442)÷12 24×125 114+48+86+52 469×5×2 480÷15÷4.
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(1)332+68÷4,
=332+17,
=349;
(2)(574-442)÷12,
=132÷12,
=11;
(3)24×125,
=3×8×125,
=3×(8×125),
=3×1000,
=3000;
(4)114+48+86+52,
=(114+86)+(48+52),
=200+100,
=300;
(5)469×5×2,
=469×(5×2),
=469×10,
=4690;
(6)480÷15÷4,
=480÷(15×4),
=480÷60,
=8.
=332+17,
=349;
(2)(574-442)÷12,
=132÷12,
=11;
(3)24×125,
=3×8×125,
=3×(8×125),
=3×1000,
=3000;
(4)114+48+86+52,
=(114+86)+(48+52),
=200+100,
=300;
(5)469×5×2,
=469×(5×2),
=469×10,
=4690;
(6)480÷15÷4,
=480÷(15×4),
=480÷60,
=8.
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