文档介绍：１．45+1５×6= 1３5
÷５×8=×5÷2×4＝6０
4．30×３+8=÷4＋2０×5＝ ２00
+12÷3+２0=34
7．(80÷20+8０)÷4＝+(1０0-１０×5）＝12０
÷40= ９
１0．40×20= -2５= 55
１2．70+45=１15
13．90×2= 1８0
×6＝ ９6
×６= ÷9=×20= 600
÷4＝ 100
-８0= +70=230
-64÷８= 1０
÷６+20=27
－５×7= 5
+６0÷３＝+18÷2= -11×５= +7-2９= ÷8０=70
×１6= 4０0
×25= 300０
×1１= ３96
32．1025÷25＝41
＋7０= 4０6
×9×4= 9００
-３３×3＝ 1０1
-101０＝2010
×5０= ×8= ×１１＝ 253
４0．1２5÷２5=5
-2２00=2００0
+80＝ 300
×8×5= 800
-3×2０0=+20÷2＝ －２5÷５＝ +８-40= 4ﻫ４8．2800÷40=÷14 ＝ 7
÷2４ = ÷14 =4ﻫ52．６5÷13 = ÷15 = 5
÷24 =÷25 = ÷１６ = 50
÷21 ＝÷14 = ÷1３ = 30
÷15 =４0
÷２4 = ÷17 = 5
÷15 =6
÷１６ = 6
65．78÷26 = ４
÷17 ＝3
６7．80÷4０ = ÷20 = 5
69．10０÷4 ＝２５ﻫ７０．2４0÷40 = ６ﻫ71．９20÷4 = 230
7２．30０÷６0=÷2 = ÷４ = 16ﻫ75．５０÷5 =１0
÷8 =
77．９6÷4 ＝ ÷6 ＝15
+80 = -80 ＝ ３２0
×80 =３200
82．４０0÷80 = ÷16 = 3
÷24 ＝４
×５= ×２50＝ １000
×51８= 0
×７6= 76０ﻫ89．３6×１0=×6= ×3= 7２
×１８＝ 90ﻫ93．26×4= 74
×１5=105ﻫ95．32×30= 960
×15= 6０0
９