早教吧作业答案频道 -->其他-->
计算,能简便的要简便计算.642-(36+132)÷4375+125÷5×12868-(168+54)88×27+27×1265×99+6515×23-23×5125×32×535×202
题目详情
计算,能简便的要简便计算.
642-(36+132)÷4 375+125÷5×12 868-(168+54) 642-(36+132)÷4 375+125÷5×12 868-(168+54) 88×27+27×12 65×99+65 15×23-23×5 88×27+27×12 65×99+65 15×23-23×5 125×32×5 35×202 98×15 125×32×5 35×202 98×15 3500÷4÷25 25×28 545-167-145. 3500÷4÷25 25×28 545-167-145.
642-(36+132)÷4 | 375+125÷5×12 | 868-(168+54) |
88×27+27×12 | 65×99+65 | 15×23-23×5 |
125×32×5 | 35×202 | 98×15 |
3500÷4÷25 | 25×28 | 545-167-145. |
642-(36+132)÷4 | 375+125÷5×12 | 868-(168+54) |
88×27+27×12 | 65×99+65 | 15×23-23×5 |
125×32×5 | 35×202 | 98×15 |
3500÷4÷25 | 25×28 | 545-167-145. |
▼优质解答
答案和解析
(1)642-(36+132)÷4
=642-168÷4
=642-42
=600;
(2)375+125÷5×12
=375+25×12
=375+300
=675;
(3)868-(168+54)
=868-168-54
=700-54
=646;
(4)88×27+27×12
=(88+12)×27
=100×27
=2700;
(5)65×99+65
=65×(99+1)
=65×100
=6500;
(6)15×23-23×5
=(15-5)×23
=10×23
=230;
(7)125×32×5
=125×8×4×5
=(125×8)×(4×5)
=1000×20
=20000;
(8)35×202
=35×(200+2)
=35×200+35×2
=7000+70
=7070;
(9)98×15
=(100-2)×15
=100×15-2×15
=1500-30
=1470;
(10)3500÷4÷25
=3500÷(4×25)
=3500÷100
=35;
(11)25×28
=25×(4×7)
=25×4×7
=100×7
=700;
(12)545-167-145
=545-145-167
=400-167
=233.
=642-168÷4
=642-42
=600;
(2)375+125÷5×12
=375+25×12
=375+300
=675;
(3)868-(168+54)
=868-168-54
=700-54
=646;
(4)88×27+27×12
=(88+12)×27
=100×27
=2700;
(5)65×99+65
=65×(99+1)
=65×100
=6500;
(6)15×23-23×5
=(15-5)×23
=10×23
=230;
(7)125×32×5
=125×8×4×5
=(125×8)×(4×5)
=1000×20
=20000;
(8)35×202
=35×(200+2)
=35×200+35×2
=7000+70
=7070;
(9)98×15
=(100-2)×15
=100×15-2×15
=1500-30
=1470;
(10)3500÷4÷25
=3500÷(4×25)
=3500÷100
=35;
(11)25×28
=25×(4×7)
=25×4×7
=100×7
=700;
(12)545-167-145
=545-145-167
=400-167
=233.
看了 计算,能简便的要简便计算.6...的网友还看了以下:
()1.2()2.5()3.7()4.9()5.10A.nineB.tenC.twoD.fiveE 2020-05-15 …
1.求数列11,103,1005,10007.前n项和2.求数列1/1.5,1/3.7,1/5.9 2020-06-12 …
计算2.5*1.3+2.5*3.7=(1.3+3.7)*2.5应用了乘法的什么定律 2020-06-27 …
分数数列求和1/2+2/4+3/8+4/16+5/32+6/64+7/128+8/256+9/51 2020-07-18 …
2.5+3.7=217÷7=70-34=1.2×0.5=1.3+27=1.5÷0.5=4.5-0. 2020-07-19 …
A为集合{1,2,3,...8}上帝置换,x为1,2,3,4,5,6,7,8时,A(x)对应为2, 2020-07-30 …
0,π/6,π/4,π/3,π/2,2/3π,3/4π,5/6π,π,7/6π,5/4π,4/3π 2020-08-02 …
哪儿错了,求帮忙利用公式π/2≈1+1/3+1/3*2/5+1/3*2/5*3/7……计算π的近似 2020-08-02 …
PI函数可根据下面公式,计算精度满足eps时的值.请填空.PI函数可根据下面公式,计算精度满足eps 2020-11-03 …
负2减负9+3-负1=?7.2-3.6+负3.6-负2.5=?0-1+2-3+4-5=?4.5-2. 2021-01-14 …