文档介绍：B ×8=
×2=
÷=
×=
÷=
4÷=
÷
÷=
× 6=
×=
7
× =
×0=
×5=
× =
60
×=
× =
× =
× =
6
÷ = ×2=
×10= ×= ×20= +=
+= ×2= －= ×=
K 6×= －= ×= ×100=
×
×=
÷7=
×100=
÷=
×8=
÷=
÷2=
÷28=
÷=
÷=
×9=
÷24=
×=
+=
－=
L ÷4=
÷13=
÷5=
+=
10÷20=
24÷15=
×10=
×=
×=
×1000=
×=
×=
÷=
÷9=
÷=
÷2=
M ÷=
÷=
×100=
×8=
0. 56 ÷=
×4=
×=
÷=
×=
×=
×=
÷=
1÷=
×=
÷=
0÷=
×102=
÷=
5×=
－ =
N ÷
÷=
5×=
24×=
×=
÷=
÷=
×=
＋ =
÷=
－=
8 ＋ =
÷=
÷5=
÷=
×30=
5÷=
7×=
÷8=
×=
O ×=
0÷6=
÷=
÷=
2÷5=
＋5=
÷=
÷=
×=
＋=
8×=
÷=
＋ =
÷28=
10÷20=
÷=
10－=
×=
＋=
÷=
P ×100=
×100=
÷2=
÷9=
÷=
÷=
3÷5=
7×=
12÷=
×=
÷=
÷100=
＋ =
×=
－ =
×=
Q 84÷=
÷=
×16=
÷2=
＋ =
16
－=
÷13=
÷41=
×=
×=
×=
×6=
×=
÷=
÷=
21÷=
×=
÷17=
÷=
×=
R ×4=
＋=
×=
×=
÷7=
72÷
=
÷=
÷
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＋ =
×=
÷=
－=
÷=
＋ =
2÷=
÷=
÷8=
×40=
×=
S ＋ =
8×=