Question

Calculeaza : a ) ( 18+2*7) : (12:2+8:4 ) , b) 24-24:3 * ( 72 :9 -2 *3 ):4* 5 , c) 36 : 6+4* 2* 5- ( 20 -12 :3 ) .d) 42 : 7 + ( 6 +6 ) : 2-24: ( 5+3 ) e) (25+20 ) :5 - ( 19 +5 ) :8 , f) 10 + ( 10 :10+10)- ( 10*1+10 )

Answer 1

Răspuns

Explicație pas cu pas:

AAA  (18+2×7)÷(12÷2 +8÷4)=(18+14)÷(6+2)=32÷8=patru

BBB  24- 24÷3 ×(72÷9 -2×3)÷4 ×5=24-8×(8-6)÷4 ×5=24-20=patru

CCC  36÷6 +4×2×5 -(20 -12÷3)=6+40-(20-4)=46-16= trei-zeci

DDD   42÷7 +(6+6)÷2 -24÷(5+3)=6+12÷2-24÷8=6+6-3=noua

EEE   (25+20)÷5 -(19+5)÷8=45÷5 -24÷8=9-3=sase

FFF   10+(10÷10+10) -(10×1+10)=10+1+10-20=unu