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![](https://rs.olm.vn/images/avt/0.png?1311)
997 + 37 = 997 + ( 3 + 34)
= (997 + 3) + 34 = 1000 + 34 = 1034
49 + 194 = ( 43 +6) + 194
= 43 + ( 6 + 194) = 43 + 200 = 243
![](https://rs.olm.vn/images/avt/0.png?1311)
997 + 37
= 997 + 3 + 34
= 1000 + 34
= 1034
49 + 194
= 43 + 6 + 194
= 43 + 200
= 243
![](https://rs.olm.vn/images/avt/0.png?1311)
997+37=997+3+34=(997+3)+34=1000+34=1034
49+194=43+6+194=43+(6+194)=43+200=243
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
997+37
= 997 + (3+34)
= (997+3)+34
= 1000 +34
= 1034
49 + 149
= 49+(1+148)
= (49+1)+148
= 50+148
= 198
997+37,49+149
=997+3+33,49+1+149
=(997+3)+33,49+(1+149)
=1000+33,49+150
=1150+33,49
=1193,49
![](https://rs.olm.vn/images/avt/0.png?1311)
997 + 37
= (997 + 3) + 34
= 1000 + 34
= 1034
49 + 194
= 43 + (6 + 194)
= 43 + 200
= 243
số đó là
997+37=(997+3)+34
=1000+34
=1034
49+194=(194+6)+43
=200+42
=242
nhé
![](https://rs.olm.vn/images/avt/0.png?1311)
997 + 37
= 997 + (33 + 4)
= (997 + 33) + 4
= 1300 + 4
= 1304
49 + 194
= 49 + ( 191 + 3 )
= ( 49 + 191 ) + 3
= 240 + 3
= 243
![](https://rs.olm.vn/images/avt/0.png?1311)
997 + 37 = 997 + 3 + 34 = 1000 + 34 = 1034
49 + 194 = 43 + 6 + 194 = 43 + 200 = 243.
997 + 37 = 997 + 3 + 34 = 1000 + 34 = 1034
49 + 194 = 43 + 6 + 194 = 43 + 200 = 243
![](https://rs.olm.vn/images/avt/0.png?1311)
a, 997 + 37 = 997 + 3 + 34 = 1000 + 34 = 1034
b, 49 + 194 = 43 + 6 + 194 = 43 + 200 = 243
998+33=(1000-2)+33=1000+31=1031
45+195=(45+55)+145=100+145=245
998+33=(998+2)+31=1000+31=1031 45+194=(45+155)+39=200+39=239