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答案 (1)103×(38-26)=1296 (2)98+42÷14=101 (3)(99-15)÷3=28 (4)(360+140)÷2÷50=5 (5)(60+40)÷(60-40)=5 (6)(6968-864)÷56=109 (7)(78+52)×(78-52)=2860 (8)113-1856÷32=55 (9)109×14+283=1809 (10)68×(243-218)=1700 (11)(610-29)÷83=7 (12)(58-28)÷6=5 (13)9500-12×30=9140 (14)(527-11)×12=6192 (15)264+500=764 (16)952÷(185-168)=56 (17)(6968-864)÷56=109 (18)25×240-1000=5000





























































