概要:94-90=71-43= 72-67= 89-30=69+3= 93-90=44+17=7-4=100-84=18+39=97-23=18+76=100-78=91-52=21+45=75-33=67+30=36+30=7-1=88-69=16+74=75+11=73+9=96-39=100-99=61+38=72-37=81-36=7+81=16+76=86-83=54+39=55+27=52+8=78-9=91-57=73+6=67+19=45-42=29+36=100-40=46+40=21+64=51-40=50-22=8+69=45+16=44-34=8-8=81-9=26+48=7-3=29-7=37-10=29-14=80+19=82-12=80-43=27+37=78-8=47+36=50-27=56-26=51+25=
一年级数学口算练习题(一),标签:数学学习方法,小学数学教学案例,http://www.99youjiao.com94-90= 71-43= 72-67= 89-30=
69+3= 93-90= 44+17= 7-4=
100-84= 18+39= 97-23= 18+76=
100-78= 91-52= 21+45= 75-33=
67+30= 36+30= 7-1= 88-69=
16+74= 75+11= 73+9= 96-39=
100-99= 61+38= 72-37= 81-36=
7+81= 16+76= 86-83= 54+39=
55+27= 52+8= 78-9= 91-57=
73+6= 67+19= 45-42= 29+36=
100-40= 46+40= 21+64= 51-40=
50-22= 8+69= 45+16= 44-34=
8-8= 81-9= 26+48= 7-3=
29-7= 37-10= 29-14= 80+19=
82-12= 80-43= 27+37= 78-8=
47+36= 50-27= 56-26= 51+25=
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