小学四年级口算题大全.doc

18×4= 130×5= 24×3= 2×380= 25×2= 150×6= 35+75= 100-6= 200-20= 14×6= 7×13=
16×8= 280×3= 362×3= 700-70= 102-20= 150+510= .87,, 17×40, 100,63, ，, ×, 14,,
?,
×500, ，, 10,, 4?20, ×200, ,, ?15
, ×, 4×, ，, ×99, 420?35, 25×12, 135?,
3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 1/6 + 1/2 -1/6 = -(+)= 7/8 + 3/8 =
3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 = ?17, ，19, ?, ×,
×, 1?5, 6?12, ,, 17×40, 100,63, ，,
×, 14,,
?, ×500, ，, 10,, 4?20,
5,, ×200, 1.
?15, ×, 4×, ，, ×99, 420?35, 25×12,
135?, 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 1/6 + 1/2 -1/6 = -(+)=
，19, ?, 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6 -1/3 = ?17,
×, ×, 1?5, 6?12, ,, 17×40, 100,63, ，
, ×, 14,, ?, ×500, ，, 10,,
4?20, ×200, ,, ?15, ×, 4×, ，,
×99, 420?35,
25×12, 135?, 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 1/6 + 1/2 -1/6 =
-(+)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2 1/6 -1/3 = ?17, ，19
, ?, ×, ×, 1?5, 6?12, ,, 17×40, 100,
63, ，, ×, 14,, ?, ×500, ，,
10,, 4?20, ×200, ,, ?15, ×, 4×,
，, ×99, 420?35, 25×12, 135?, 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 1/6 + 1/2 -1/6 = -(+)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2 - 1/6
-1/3 = ?17, ，19, ?, ×, ×, 1?5, 6?12,
,, 17×40, 100
,63, ，, ×, 14,, ?, ×500, ，
, 10,, 4?20, ×200, ,, ?15, ×, 4×,
，, ×99, 420?35, 25×12, 135?, 3/4 + 1/4 = 2 + 4/9 = 3 - 2/3 = 3/4 - 1/2= 1/6 + 1/2 -1/6 = -(+)= 7/8 + 3/8 = 3/10 +1/5 = 4/5 - 7/10 = 2
- 1/6 -1/3 =
?17, ，19, ?