102-(155,4:14,8+2,1)∙3,5= 631,96:2,8):7,4-6,4∙3= (18-(10,53:2,6+7,4))+115,82= Решите по...

Question

102-(155,4:14,8+2,1)∙3,5= 631,96:2,8):7,4-6,4∙3= (18-(10,53:2,6+7,4))+115,82= Решите по действиям

Answer 1

1. 102-(155,4:14,8+2.1)•3.5=57.9

1) 155,4:14.8=10.5
2) 10.5+2.1=12.6
3) 12.6•3.5=44.1
4) 102-44.1=57.9

2. (631.96:2.8):7.4-6.4•3=11.3

1) 631.96:2.8=225.7
2) 225.7:7.4=30.5
3) 6.4•3=19.2
4) 30.5-19.2=11.3

3. (18-(10.53:2.6+7.4))+115.82=121.55

1) 10.53:2.6=4.05
2) 4.05+7.4=11.45
3) 18-11.45=6.55
4) 6.55+115=121.55


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Удачи ;)