20 以内加减混合运算练习题3+9-97+4-96+8-85+4-68+5-21+7-85+4-58+7-78+6-44+5-46+9-28+4-38+5-36+8-55+3-84+4-23+12-94+3-39+10-35+10-104+4-23+10-74+6-53+9-48+5-64+4-37+9-69+5-97+7-97+3-410+9-64+4-37+7-22+11-68+6-97+3-48+5-36+9-41+7-413+5-62+6-58+6-1012-4+86+4-59+7-95+4-612+8-74+9-35+8-22+8-43+6+18+4-88+10-74+8-210-1+41+8-86+2-32+9-911+2-86+4-97+1-56+7-510-2+92+5-63+9-610+7-66+10+28+7-77+8-53+1-33+10-49+6-67+7-219-5+44+12-79-7+36+9-49+7-45+10-43+12-4一年级下册加减混合带小括号计算题26+30+57+53+146-6+4026+3+834+8+5073+20-312-(5+4)14-(9-3)8+(4+7)13-(6+3)90-(16+4)20-(30-10)12-5+440+20+854-5+3076-6-887-9-1065-7-4043-(3+27)39-(9-5)30+(11-4)47+(18-9)40+(15-8)75-(10+50)47-9+5036+40+259-9-2063-30+514+6+4256+5-2060-8-3048+(18-9)17+(54-4)73-(13+7)38+(46+4)83-(27-20)44-(5+4)13+7+5467-8-5017+6+843-8-3060+38-9050+27-954+(17+3)93-(68-60)