文档介绍：1) 33+3=
5) 120x4=
9) 3x220=
13) 21x2=
17) 200x4=
21) 23x2=
25) 2x13=
29) 389+101=
33) 554-231=
37) 8x200=
41)
3
—।—=
■
7 7
5
5
10
10
2 4
8
4
6
4
--—=
9 9
11
11
17
17
8X7+6=
50—24+4=
72-724-6=
12X3+3=
8X2X7=
45+55+5 =
51—4x6+3=
6X7+6=
9+94-9=
8+2X10=
5X8-8=
24+15+6=
70x(40-32) =
36+3+2=
800-800+4=
90—30+3=
57X3X0=
18+3—4=
300+2+5=
3000—6x408=
5X5+4=
8X9-7=
6X80-20=
86—864-2=
50X6+0=
960+4+2=
500-41244=
(400-394)x706=1+2+3+4+5+6+7+8+9+10=
1+11+111+1111+1111=1+12+123+1234+12345=
10000—1000—100—10—1=
632+131 =
+=
15 + 3+7 =
102+20=
40+580 =
439+46=
0+8 =
75 + 25+5 =
200+5000 =
480+90=
320—180=
280+70=
7+3X0=
17+18=
5+=
45+55 + 5 =
62-17=
+=
4+=
600+300=
12+124-12=
+=
6000+3096 =
60+89=
+=
7681+2309 =
215+4=
8501+53799=
-=
80 X 30=
86509+4736=
—=
60 X 70=
5268+29=
-=
18X5 =
86509-4736=
26—8=
40X60 =
-=
350-70=
54X63 =
450-175=
80-36=
25X38 =
45-9-17 =
500-240=
36X19 =
7894-66=
-=
16X60 =
6789-789=
540-360=
500X3 =
8020-8000=
359-42=
0X930 =
125-25X2 =
1000-60=
27X30 =
—=
250-25=
12X40 =
— =
3X10=
10X40 =
10-=
80X40=
12X50 =
—5=
63X36 =
15X6=
91-59 =
26X38 =
32X30 =
750-78 =
25X17=
5X20=
51-4X6 =
360X5 =
160X4 =
600-50=
32X68 =
13X4=
—=
56X79 =
25X4=
54-9=
64X28 =
50X0X8 =
704-5 =
2004-4 =
63+22=
304-10=
72+4=
34+200=
84+42 =
8000+2 =
25 + 300=
300+5 =
40004-50=
36004-300=
720+9 =
90+5X3 =
8400+600=
720+0=
104-10X30 =
1900+5400=
1804-20=
4204-2 =
23004-800=
04-90=
3004-24-5 =
27+5=
85 + 5 =
7744-8 =
25+24=
57 + 3 =
+=
360+85=
630+9 =
+=
296+304=
450+5 =
25+40=
28300+41 =
240+6 =
103 + 329=
65100+210=
84+12 =
428+4