5) Descubra & tim
2 + 3 x=12
b) 2 = 124
2 y +4y=20
Il Gy+ 3 y=162
e x-38=117
f3x12=9
g) I-10-11
h) 4x/15 = 8
jy-6=15
Respostas
Resposta:
11) 4 + 5 x 7 + 8= 117
12) 15 - 3 x 4 + 7=
15 - 12 + 7 =
3 + 7 =
10
13) 6 × 7 - 15:5 =
42 - 3 =
39
14) 9 × 3-5 × 5=
27 - 25 =
2
15) 6 × 6 : 9 + 6=
36 : 9 + 6 =
4 + 6 =
10
16) 3 + 9 × 5 +2 =
3 + 45 + 2 =
48 + 2 =
50
17) 5 × 8 ÷ 4 × 5=
5 × 2 × 5 =
10 × 5 =
50
18) 6 + 6 × 6 + 6 =
6 + 36 + 6 =
42 + 6 =
48
19) 4 × 9-3 × 8 +2 × 8=
36 - 24 + 16 =
12 + 16 =
28
20) 5 × 7+3 × 5 - 5×10=
35 + 15 - 50 =
50 - 50 =
0
31) 50-[( 6 x 8): (12 + 4 )]=
50 - [ 48 : 16 ] =
50 - 3 =
47
32) 38 +[7 x ( 6 + 3) - (17 x 3)]=
38 + [ 7 × 9 - 51 ] =
38 + 63 - 51 =
101 - 51 =
50
33) 3 x [5+ (42:3-9 )] =
3 × [ 5 + 14 - 9 ] =
3 × 19 - 9 =
57 - 9 =
48
34) 120 : [ 3 x 15+(2 x 7 + 1)=
120 : [ 45 + 14 + 1 ] =
120 : 60 =
2
35) [ 16 + ( 2 +(5 x 3) - (21:7 +10)=
16 + 2 + 15 - 3 + 10 =
18 + 12 + 10 =
30 + 10 =
40
Explicação passo-a-passo: