小学四年级口算题.doc

文档介绍：640-80=
39+3=
15x5=
24x20=
23x3=
32x3=
12x2x5=
48+16=
480-80=
12x8=
16x5=
27x3=
27x3=
56-14=
90-15=
24+8=
48-4=
14x2=
640-16=
83-45=
560-80=
48+27=
96-24=
4500x20=
40-20=
73 + 15 =
40x30=
120x600 =
37+26=
200x360=
76-39=
6800x400=
605+59=
280+270=
30x23=
4x2500=
12x8=
6000-40=
27+32=
5x1280=
310-70=
980-14=
400x14=
4200-30=
470+180=
6x1300=
1000-25=
1300x50=
160x600=
200x48=
20x420=
930-660=
290x300=
530+280=
8100-300=
9200-400=
7600-200=
840+21=
7600-400=
180x500=
680+270=
8000-500 =
1900-20=
750-290=
200x160=
5x490=
8700-300=
760x20=
300x330=
7500-500=
3x1400=
370x200=
7000-14=
650-13=
600-12=
8600-4200=
9600-80=
240x4=
140x300=
640-80=
8800-40=
15x10=
9600-800=
12x11=
160x30=
100-54=
220x40=
123 + 15=
104x5=
360-4=
4500-50=
55-5=
120x2=
32x6=
90-30=
7000-?70 =
270-30=
200-40 =
270x30=
180-30=
84-21=
240-40=
76-9=
35x2=
66-7=
140x7=
13x6=
11x80=
280x3=
24x50=
350x2=
3600-400=
50x11=
530-70=
250x6=
420-90=
7200+900=
9600-30=
410-201 =
7x700=
125x8=
203+98=
48x20=
1800-300=
6600-600=
240+570=
390+140=
4800-400=
27x3=
605+59=
48-4=
244-8=
90-15=
14X2=
24x20=
83-45=
32x3=
964-24=
48+16=
404-20=
12X8=
40X30=
27X3=
160X30=
564-14=
12X8=
76-39=
27+32=
48+27=
470+180=
4500X20=
60X600=
120X600=
20X420=
30X23=
290X300=
123 + 15=
680+270=
280+270=
6X1300=
200X360=
1300X50=
4X250=
200X48=
310-70=
930-660=
400X14=
360-4=
530+280=
100-54=
180X500=
12x11=
200X160=
220x40=
300 X 33=
104x5=
3X1400=
120x2=
604-12=
90-30=
140X300=
270x30=
5X400=
55-5=
370X200=
32x6=
654-13=
35x2=
15X10=
844-21 =
140x7=
750-290=
13x6=
48X20=
280x3=
390+140=
370+580=
11 X80=
350X2=
24X50=
50X11 =
530-70=
250X6=
420-90=
7200+900=
7X700=
410-201 =
203+98=
125X8=
240x3=