Question

1.Calculează :
(8x9 - 4:2) - (91-99) =
100-(27+ 7x6 - 48:8):7 =
(4x8 + 3x9 +21):10: (40 – 9x4) =
56: (100 - 8x5 - 6x5 - 7x3-1) =
(24+ 6x2):4 +7 -(28 - 12:3):6=
(54: 6x3 - 6x2): 3 =
(2x3x3):2x(45:9 +72:8 - 16:2)=
4 x 3 + 15 - 7 x 2 + 37 - 8 x 6 =
19 + (6 x 7 - 18 ) - 2 x 9 =
73 - 58 + 29 - 4 =
24 : 8 x 3 x 4 : 6 =
30 + 32 : 8 + 8 x 7 - 100 : 10 =
20 - (3 x 5 - 2 + 3): ( 26 - 9 x 2) =
10 x 4:5 x 3 + 32 - 32 : 8 x 7 =
89 + 64 : 8 x 7 - 28 : 7 x 4 =
(25:5-7:7) + ( 36: 9 + 8 x 0 ) =​

Answer 1

(8*9-4:2)-(91-99)=(72-2)-8=70-8=62

100-(27+7*6-48:8):7=100-(27+42-6):7=100-63:7=100-9=91

(4*8+3*9+21):10:(40-9*4)=(32+27+21):10:(40-36)=80:10:4=8:4=2

56:(100-8*5-6*5-7*3-1)=56:(100-40-30-21-1)=56:8=7

(24+6*2):4+7-(28-12:3):6= (24+12):4+7-(28-4):6=36:4+7-24:6=9+7-4=12

(54:6*3-6*2):3=(27-12):3=15:3=5

(2*3*3):2*(45:9+72:8-16:2)=18:2*(5+9-8)=9*6=54

12+15-14+37-48=2

19+(42-18)-18=25

73-58+29-4=40

24:8*3*4:6= 3*3*4:6=36:6=6

30+4+56-10=80

20-(15-2+3):(26-18)=20-16:8=20-2=18

40:5*3+32-4*7=24+32-28=28

89+8*7-4*4=89+56-16=129

(5-1)+(4+0)= 4+4=8