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脱式计算,能简算的要简算.①96+320÷16-38②730-(450+300)÷25③(334-209)×8÷25④213×42+213×58⑤2.04-0.36-1.64⑥8.29+3.7+0.71+6.3.
题目详情
脱式计算,能简算的要简算. ①96+320÷16-38 | ②730-(450+300)÷25 | ③(334-209)×8÷25 |
④213×42+213×58 | ⑤2.04-0.36-1.64 | ⑥8.29+3.7+0.71+6.3. |
▼优质解答
答案和解析
解;①96+320÷16-38,
=96+20-38,
=78;
②730-(450+300)÷25,
=730-750÷25,
=730-30,
=700;
③(334-209)×8÷25,
=125×8÷25,
=1000÷25,
=40;
④213×42+213×58,
=213×(42+58),
=213×100,
=21300;
⑤2.04-0.36-1.64,
=2.04-(0.36+1.64),
=2.04-2,
=0.04;
⑥8.29+3.7+0.71+6.3,
=(8.29+0.71)+(3.7+6.3),
=9+10,
=19.
=96+20-38,
=78;
②730-(450+300)÷25,
=730-750÷25,
=730-30,
=700;
③(334-209)×8÷25,
=125×8÷25,
=1000÷25,
=40;
④213×42+213×58,
=213×(42+58),
=213×100,
=21300;
⑤2.04-0.36-1.64,
=2.04-(0.36+1.64),
=2.04-2,
=0.04;
⑥8.29+3.7+0.71+6.3,
=(8.29+0.71)+(3.7+6.3),
=9+10,
=19.
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