Question

. 1. Cáte exercitii poți rezolva in 10 minute? Calculează: 3 14 1:1 5 25 12 4-6 d) 4.2- e) 47= 15: - 8) 21 - h) 310-10- h) := 1) 12:15 - 1584 ) - 56​

Answer 1

Răspuns:

1/2÷1/4=1/2×4/1=4/2=2

3/5÷1/25=3/5×25/1=15/1=15 simplifici 5 cu25 prin 5

7/12÷14/3=7/12×3/14=1/8simpifici 12 si 3 prin 3 si7 si 14 priin 7

11/5÷2/1=11/5×1/2=11/10

14/3÷7=14/3×1/7=2/3

15/1÷3/8=15/1×8/3=40/1=40

2 1/3=2×3+1/3=7/3

7/3÷7/9=7/3×9/7=3/1=3

h)31

i)10

l)4/3