(104 × 4+
(138x5-21:7-300x.
19. .Alfabet... matematic":
b) (99-b-3x8) + 2x 6:2=8x2+5x10; n) (9x7+n-5 x 8)-5x5+70=75
a) (9x9-6x6-a) + (13+28:4)=5x10+3; m) (9 x 9-m-8×4):7=2x2
c) (6x4:3+c): 7 = 16:4;
d) (9x4:6xd)-5x5=45:9;
(e) (e-5x6+10 x 5): 5+ 4x8 = 42;
TO) (96-3x4-5x8) + f-9x7 = 13;
[g) (23-6x3+g)+3x9-8x3:6=34;
o) (87-9x4-o)-5x5+ 10:2=5x2
-
s) (8x9+s-5x8)-(30-5x2+5)=1
r) (5 x 5+6x6-)+6x5-5x10
p) 93 (85-9x9
+5x8)-p=5x6
t) (36-5x6-1)+9x8-7x10
=4
h) (3x9+9:h)+5x4:2-(12-4x2) = 6×6;
u
) (7 x7-6x6+u)-24
:
3-2x10
x)
(x+8x2
+6x8)-8x9
+8x8=6x1
v
) (v-
5x5-2 x 8)+
6x5-5x10
=
z
) (6x9 z) 3 x 10+
16:2=4x3x
i) (47+7):1=28:4+42:6-35:7;
(6x5+4xj-8): 6 = 28:4;
k) (8x8-32-12: k) - (40-2 x 10) = 3 × 3; y) (y+ 5 x 5) - 6 x 6 = 40:2 + 3;
1) (95-9x5-9x): 8=9x4-8×4;
70
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