Question

37.4+120.21+21.5.12

Answer 1

37.4 + 120.21 + 21.5.12

= 148 + 21.( 120 + 60)

= 148+ 21 . 180

= 148 + 3780

= 3928 

Answer 2

\(37.4+120.21+21.5.12\\ =37.4+120.21+21.60\\ =37.4+120.21+21.60\\ =37.4+\left(120+60\right).21\\ =37.4+180.21\\ =37.4+4.45.21\\ =37.4+4.945\\ =\left(37+945\right).4\\ =982.4=3928\)