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a) 46 + 17 + 54
= ( 46 + 54 ) + 17
= 100 + 17
= 117
b) 4.37.25
= (25.4).37
= 100.37
= 3700
c) 87.36 + 87.64
= 87.(36 + 64)
= 87.100
= 8700
a) 46+17+54
=(46+54)+17
=100+17
=117
b) 4.37.25
=(4.25).37
=100.37
=3700
c) 87.36+87.64
=87. (36+64)
=87.100
=8700
Tích đúng nha
![](https://rs.olm.vn/images/avt/0.png?1311)
46+17+54=(46+54)+17=117
4.37.25=(4.25).37=3700
87.36+87.64=87.(36+64)=8700
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có:
87 . 36 + 87 . 64 = 87 . ( 36 + 64 ) = 87 . 100 = 8700
![](https://rs.olm.vn/images/avt/0.png?1311)
a, 46 + 17 + 45
= 46 + 17 + 44 + 1
= ( 46 + 44 ) + ( 17 + 1 )
= 90 + 18
= 108
b, 4 x 37 x 25
= ( 4 x 25 ) x 37
= 100 x 37
= 3700
![](https://rs.olm.vn/images/avt/0.png?1311)
a,87.36 + 87.64 = 87 . (64 + 36) = 87 x 100 = 8700
b, 91.51 + 49.163 - 49.72 = 91.51 + ( 49.163 - 49.72 ) = 91.51 + 49.91 = 91.(51+49) = 91.100 = 9100
![](https://rs.olm.vn/images/avt/0.png?1311)
a, ( 46 + 54 ) + 17 = 100 + 17 = 117
b, ( 4 . 25 ) . 37 = 100 . 37 = 3700
c, 87 . ( 36 + 64 ) = 87 . 100 = 8700
a,46+17+54
=(46+54)+17
=100+17
=117
b,4.37.25
=(4.25).37
=100.37
=3700
c,87.36+87.64
=87.(36+64)
=87.100
=8700
Chúc bạn học giỏi nha ^-^
![](https://rs.olm.vn/images/avt/0.png?1311)
\(A=8\cdot17\cdot125=\left(125\cdot8\right)\cdot17=1000\cdot17=17000\)
\(B=\left(25\cdot4\right)\cdot37=100\cdot37=3700\)
\(C=\left(75+50-25\right)\cdot58=100\cdot58=5800\)
\(D=\left(39+63-2\right)\cdot27=100\cdot27=2700\)
A=8.17.125= (8.125).17= 1000.17=17000
b=4.37.25=(4.25).37=100.37=3700
c= 58.75+58.50-58.25= 58.(75+50 - 25)= 58.100=5800
d=27.39+27.63-2.27= 27.(39+63-2)=27.100=2700
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 46 + 17 + 54 = 117
b) 4 . 37 . 25 = 3700
c) 87. 36 + 87 . 64 = 8700
kick mik đi
\(a,46+17+54=100+17=117\)
\(b,4\cdot37\cdot25=100\cdot37=3700\)
\(b,87\cdot36+87\cdot64=87\cdot\left(36+64\right)\)
\(=87\cdot100=8700\)
ti ck nha
a,46+17+54 b,4.37.25 c,87.36+87.64
=(46+54)+17 =(4.25).37 =87.(36+64)
=100+17 =100.37 =87.100
=117 =3700 =8700