××14 ×60 5–3×
+× ×× ×+×
(+)×15 ×× (+)×36
×× ×8÷ +×
÷÷ (+)× (–)×
1–÷ 98× ×126
+(4-3)÷ 35÷[(-)×3]
(+)×(-) (8-10.5×)÷4 ÷-×
( -×)÷ 13.8―+6.2―
×+×
×× (+)×36
××14 ×5×18 5–3×
+× ×× (+)×15
:χ= χ-=
3x-6=8.25 X+X=×
(+ )÷ ×3.8 — 3.8× ÷ + ÷
24 — 24 × ×÷ 12 ÷ ×
×( + ) ÷ × ÷[(+)×]
-×(-) (-)×(7-) ÷( — )
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