乘加口算练习题

乘加口算练习题4×2+3= 6×5+1= 4×7+4= 5×9+2=8×2+2= 7×6+3= 4×7+5= 3×8+2=5×2+3= 8×5+4= 7×7+3=

腾讯文库乘加口算练习题