一年级下册加减混合运算口算题
九九重阳节诗词-今冬麦盖三层被
9-2+3= 2+3+2=
8-4-2= 9-7+4=
3+5-1=
3+4+3=
9-1-2=
10-6-3=
7-5-1=
7+1-4=
7-6+7=
.
3+4+1=
9-9+10=
10-6+2=
7-5-1=
7-6+3=
9-7-2=
10-2-5=
3+7-3=
8-2+3=