Question

giúp bài 2 vs bây:v

Answer 1

1)66.25+5.66+66.14+56.66
=66.(25+5+14+56)
=66.100
=6600
2)12.35+35.182-35.94
=35.(12+182-94)
=35.100
=3500
3)(1975+8537)-8537
=1975+8537-8537
=1975+0
=1975
4)(35-17)+(17+20-35)
=35-17+17+20-35
=35-35+17-17+20
=0+0+20
=20
5)(957-725)-(605-553)
=957-725-605-553
=232-52
=180
6)(55+45+15)-(15-55+45)
=55+45+15-15-55+45
=100+0+100
=200