精品文档---下载后可任意编辑计算(能用简便的要简算):12 +12 ×1212 -12 ×(12 ÷12 ) (12 -12 )×12 ÷1212 ÷【12 ×(12 +12 )】 12 -12 +12 ÷1212 ÷【(12 -12 )×12 】12 +12 -1212 ×12 +12 ÷12 (12 -12 )×88 13—48×(12 +12 )12 ÷3+12 ×1212 +12 ×12 +1212 ×12 +12 ×12 +12(12 -12 )×(12 +12 ) 12 ÷7+12 ×12【1-(12 +12 )】÷1212 ÷12 +12 ×12(12 +12 -12 )×12 2-12 ÷12 -12 99×1212 ÷12 +12 ×1212 ×12 +12 ÷1212 ×12 ÷12 -1245×12 (12 -12 )÷1212 ÷(12 -12 ) 12 ×4-(12 +12 ) 5-12 -0,125直接写得数×16= 12÷= 0.3× = ÷= 1÷=×÷ = ×÷×= 0×+ =能简算的要简算48×( +2)÷ 23- ×÷×7+ ×115÷[( + )×] ×23+ ×67(12 -16 )×35 ÷15直接写得数。3÷67 = 56 ÷10= 38 ÷910 = 12 -14 = 18×16 = 710 ÷1415 =怎样简便就怎样计算:15 ÷(1-13 ×12 ) 910 ×【78 ÷(45 +14 )】 (14 -14 ×12 )÷1456 +98 ×59 ×89 9×56 +56 ÷19 (38 +127 )×8+1927X-13 X=23 1-13 X=23 8X+13 =791544 :X=51184×(34 -13 ) 38 +(37 +114 )×231112 ÷18 +1312 ×8 (34 -34 ×56 )÷43 4-(15 +13 )×3425 ÷(25 +25 ×34 )34 ×23 ÷34 ×2379 ×(1÷78 +87 ÷1) 45 ×【(12 -15 )÷815 】3450 ×47 -47 ×95034 ×5678 +4418 ×34 -34 (34 +223 )×8+723怎样简便就怎样算:12 ×3+5×12 3×(215 +112 )-2513 +3-(14 +112 )34 ×57 ×43 -121516 +(716 -14 )÷1223 +(47 +12 )×72514 +2X=12 5X-56 =51223 X-15 X=1 X+79 X=4313—48×(56 +56 ) 45×56 5-56 -0,125(8+3)-( - ) 13.76-(+1.76+1)(×)×(13×××1.9+1998×÷÷××3206×+13÷4-18××××÷×××32-37-5631×1×1×1×1 9-15÷19-×2×【1÷(-)】 (+)+(-)-(+)+2.5+2.5+2.5) ×25×8 (+++)×(1-)××1.75) ÷××) 【(-÷2) ×+1÷6】÷×××25% (3+÷+3) -(7×÷7×)×9+×)】÷ (12+) ×2.5+(9+10)...