〔0.5+(2-0.75)〕×1.6 10.73-4.76-5.24 17.4×2.43-1.43×7.4 2.2+(4
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〔0.5+(2-0.75)〕×1.6 | 10.73-4.76-5.24 |
17.4×2.43-1.43×7.4 | 2.2+(4.72-2.8)÷0.4. |
(1)[0.5+(2-0.75)]×1.6,
=[0.5+1.25]×1.6,
=1.75×1.6,
=2.8;
(2)10.73-4.76-5.24,
=10.73-(4.76+5.24),
=10.73-10,
=0.73;
(3)17.4×2.43-1.43×7.4,
=42.282-10.582,
=31.7;
(4)2.2+(4.72-2.8)÷0.4,
=2.2+1.92÷0.4,
=2.2+4.8,
=7.
再问: ��ʵ�����������˷�������
=[0.5+1.25]×1.6,
=1.75×1.6,
=2.8;
(2)10.73-4.76-5.24,
=10.73-(4.76+5.24),
=10.73-10,
=0.73;
(3)17.4×2.43-1.43×7.4,
=42.282-10.582,
=31.7;
(4)2.2+(4.72-2.8)÷0.4,
=2.2+1.92÷0.4,
=2.2+4.8,
=7.
再问: ��ʵ�����������˷�������
〔0.5+(2-0.75)〕×1.6 10.73-4.76-5.24 17.4×2.43-1.43×7.4 2.2+(4
17.4*2.43-1.43*7.4怎样简便计算
17.4×1.43-1.43×7.4简算~
17.4*2.43-2.43*7.4简便运算
【0.5+(2-0.75)】*1.6 要简便运算
(1-2)×〔2-3〕×(3-4〕.× (19-20)==
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-1/7-〔-2/7〕; 3/8+〔-1又4/5〕; ﹙-4﹚-﹙+13﹚+﹙-5)-(-9)+7; 〔-2/3〕-〔1
简便方法:①5.2-3.65+4.8-5.35 ②(1.6+4.2/0.3)*0.5 ③0.75*99-4分之3+2*7
1×〔2÷3〕×〔3÷4〕×〔4÷5〕×〔5÷3〕.〔4010÷4011〕×〔4011÷4012〕等于多少?
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