Question

2. Calculează în două moduri, după model.
Model
(25 + 60) : 5 = 85:5 = 17
(25 + 60):5= 25:5 + 60 : 5
(14 +84):7
(12 + 32): 2
(64 + 32): 4
(12 + 32 +24):2
(15 + 60 +21) :3​

Answer 1

Răspuns:

(14+84):7=98:7=14

(14+84):7=(14:7)+(84:7)=2+12=14

(12+32):2=44:2=22

(12+32):2=(12:2)+(32:2)=6+16=22

(64:32):4=96:4=24

(64:32):4=(64:4)+(32:4)=16+8=24

(12+32+24):2=68:2=34

(12+32+24):2=(12:2)+(32:2)+(24:2)=6+16+12=34

(15+60+21):3=96:3=32

(15+60+21):3=(15:3)+(60:3)+(21:3)=5+20+7=32