Question

Ex 10. Dau coroană



Mersi mult!!

Answer 1

1/12+1/3×5/6=3/36+5/18=3/36+10/36=13/36

5/6-(5/6)×2= 5/6-10/6= -5/6

0,4+0,6×10=4/10+(6/10)×10=4/10+60/10=64/10=32/5

1/2-2/3÷(1/0,3)=1/2-2/3 ×0,3=

1/2-2/3×3/10=5/10-2/10=3/10

4/5×5/4-1/2×4,2=1-1/2×42/10=

1-21/10=10/10-21/10= -11/10

6÷4/3-10×1/2+0,57=6×3/4-5+57/100=

450/100-500/100+57/100=7/100

0, (4)÷5/9-0,8×2=4/9×9/5-8/10 × 2=

4/5-8/5= -4/5