小学二年级数学加减乘除混合口算题

2 × 3 + 49 =40 ÷ 5 + 30 =32 ÷ 4 + 92 =15 ÷ 5- 1 =5 × 2 + 2 =8 × 7 + 36

腾讯文库小学二年级数学加减乘除混合口算题