Răspuns :
Răspuns:
Ex 8.
(48+40) : 8 = 11 cutiute
48:8 + 40 : 8 = 6+5=11
Explicație pas cu pas:
Răspuns:
4)
(25+15):5=40:5=8
(16+28):4=44:4=11
(45+39):3=84:3=28
(44+48):4=92:4=23
(81-27):9=54:9=6
(45-20):5=25:5=5
(78-46):2=32:2=16
(96-48):3=48:3=16
6)
(21+14+35):7=70:7=10
(16+20+32):4=68:4=17
(35+45+30):5=110:5=22
7)
(25:5)+(15:5)=(25+15):5=40:5=8
(40:8)+(32:8)=(40+32):8=72:8=9
(42:7)+(14:7)=(42+14):7=56:7=8
(16:4)+(24:4)=(16+24):4=40:4=10
8)
(48:8)+(40:8)=6+5=11 cutii
al doilea mod
(48+40):8=88:8=11
9)
(45+18+36):9=99:9=11
10)
(74-49):25=25:25=1
11)
in căsuța pui cifră 9
(45+36):9=81:9=9 rânduri
alt mod
(45:9)+(36:9)=5+4=9