1) 3424 :32 +51×80=4187
1. 3424 :32=107 3424|32__
32 107
224
224
2. 51×80=4080 ×51
80
4080
3. 107 + 4080 =4187 + 4080
107
4187.
2) 43,08 -1,632:0,08=
1. 43,08-1,632= 41,448 - 43,080
1,632
41,448
2. 41,448 : 0,08 =518,1
41,448 :|0,08
40 518,1
14
8
64
64
8
8