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a) 45.37 + 45.63 - 100
\( 45.(37 + 63) – 100 \)
\(45.100 – 100\)
\(100.(45 – 1) \)
\( 100 . 44 = 4400\)
![](https://rs.olm.vn/images/avt/0.png?1311)
273.63+45.37+45.63+273.37
=276.(63+37)+45.(37+63)
=276.100+45.100
=27600+4500
=32100
\(=273\left(63+37\right)+45\left(37+63\right)\)
\(=273.100+45.100\)
\(=100\left(273+45\right)\)
\(=100.318\)
\(=31800\)
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đáp số cần tìm :
55 + 100 + 45
= ( 55 + 45 ) + 100
= 100 + 100
= 100 x 2
= 200
đ/s :200
mk nha
55 + 100 + 45
= ( 55 + 45 ) + 100
= 100 + 100
= 100 x 2
= 200
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
123456789 - 23456789 + 100
= ( 123456789 - 23456789 ) + 100
= 100000000 + 100
= 100000100
![](https://rs.olm.vn/images/avt/0.png?1311)
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32.47+47.68- 100 . 17
= (32.47+47.68) - 100 . 17
= 47 (32 + 68) - 100.17
= 47.100 - 100.17
= 100.(47-17)
= 100. 30
= 3000
32.47+47.68- 100 . 17
= 47. ( 32+68 ) - 100.17
=47.100 - 100.17
=100.( 47-17 )
=100.30
=3000