Question

Urmăriți modelele de calcul rapid:

M: • 47-9=47-10+1=37+1=38;
M: •87-11=84-10-1=74-1=73;

57-9=
77-11=
145-99=
375-101=
4336-996=
7927-1002=


Va rog, repede!!​

Answer 1

Explicație pas cu pas:

57-9=57-10+1=47+1=48

77-11=77-10-1=67-1=66

145-99=145-10-1=135-1=134

375-101=375-100-1=365-1=364

4336-996=4336-1000+4=3336+4=3340

7927-1002=7927-1000-2=6927-2=6925

~sper ca te-am ajutat~

Answer 2

57-9=57-10-1=47+1=48

77-11=77-10-1=67-1=66

145-99=145-10-1=135-1=134

375-101=375-100-1=365-1=364

4336-996=4336-1000+4=3336+4=3340

7927-1002=7927-1000-2=6927-2=6925