文档介绍：word
word
1 / 9
word
For personal use only in study and research; not for mercial use
口算
：时间：成绩：
25+19= 33-11= 33-9=
32+11= 32+17= 32-12= 32-21= 32+15=
口算
：时间：成绩：
31+18= 31-11= 31+49= 31+19= 31-25=
30+20= 30-19= 30+16= 30+18= 29+21=
29-18= 29+11= 29-19= 29+20= 28+22=
28-13= 28+17= 28+23= 27+45= 27+19=
27-15= 27+14= 27+13= 27+12= 27+14=
26-25= 26-13= 26+14= 26+11= 26-22=
word
word
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word
25+24= 25-11= 25-20= 25+23= 24+18=
24-11= 24+11= 24+8= 24+23= 23+23=
73+17= 62+19= 32+11= 22+68= 22-17=
20+26= 20+17= 20+16= 20+53= 20+29=
口算
： ------------------ 时间：-------------
19+55= 19+9= 19+13= 19+17= 19+23=
19+29= 19+31= 18+12= 18+19= 18+23=
18-17= 18+31= 18-17= 17+33= 17+29=
17+26= 17+21= 17+17= 17-9= 17-13=
16+33= 16+30= 16+29= 16+26= 16+19=
16+15= 16+79= 16-10= 16-7= 16-14=
15+35= 15+33= 15+29= 15+25= 15+18=
15-7= 14+36= 14+33= 14+31= 14+27=
14+