脱式计算
824÷4x3 (601-246)÷5 201+232-365
= = =
= = =
(25+38)x15 (59-187)÷3 1500-125x8
= = =
= = =
25x8x9 (601-246)÷5 201+232-365
= = =
= = =
(25+33)X26 2+3x56= 63x147-198=
= = =
= = =
735-35x12= 540÷(65-59) 789-13x45
= = =
= = =