文档介绍：3年级上册口算
17x40 =
100-63 =
+ =
=
14-=
— =
=
+ =
10 — =
4-20 =
=
- =
-15=
=
=
+=
=
420-35 =
25x12 =
135--
3/4 + 1/4 =
2 + 4/9 = 3
-2/3 = 3/4
-1/2= 1/6 +
1/2-1/6 =
・(+)=
7/8 + 3/8 =
3/10+1/5 =
4/5-7/10 =
2-1/6-1/3 =
-17=
+19 =
— =
= = =
6-12= -= 244-3x9= 15x3-20= 12x11+13= 25x4+36=
36+25-14=
2x36+4=
12-4x35=
(23-8) x3=
14-2+21-3=
42-14+54-9=
55-11x20=
36-9x12=
16-4x19=
16-45-15+6=
123+25=
148+123-35=
88+56x7=
392-135-5=
27+248+89=
337+146-23=
123+155x5=
775- 456-12=
38+456+45=
501+546-457=
89+ 45x10=
451+564-12=
47+879+54=
933+896-546=
350+56x12=
672+45-5=
9457+456= 913- 7+14=
21+18-9=
9+ 8+16=
24+25-5= 20+ 9+18=
27+56-45=
11+10+20=
30+45-23=
22+11+22= 33+78-23=
55-12+24=
36-10-3=
7+15-4=
11+20-5=
15+25-6=
19+30-7= 23+35-8=
27+40-9=
31+45-10=
35+50-11 =
39+55-12= 43+60-13= 47+65-14=
51+0-15=
75-16=
80-17=
85-18=
90-19=
95-20=
100-21 =
105-22=
110-23=
115-24=
120-25=
125-26=
130-27=
13+26=
14+28=
15+30=
16+32=
17+34=
18+36=
19+38=
20+40=
21+42=
22+44=
23+46=
24+48=
25+50=
26+52=
27+54=
28+56=
29+58=
30+60=
31+62=
32+64=
33+66=
5-1 =
10-2 =
15-3 =
20 -4 =
25 -5 =
30 -6 =
35 -7 =
40 -8 =
45 -9 =
50 -10 =
55-11 =
60