人教版五年级数学下册口算题.doc

人教版五年级数学下册口算题
×4= += += +=
×4= 1-= += ×2= 4×= += += ×, ×, 24?15= 187?1000= 4?20, 4×, ×10= 1+= ×200, ，, ×= ×10= ,, ×99, ×= 75?10= ?15, 420?35, ×1000= ?= ×,25×12,
×7, 4×, 135?, ×=
×7, ，, 3/4 + 1/4 = ×=
×8, ×99, 2 + 4/9 = ?=
×8, 420?35,3 - 2/3 = ?9=
×2, 25×12, 3/4 - 1/2= ?=
5×, 135?, 1/6 + 1/2 -1/6 = ?2=
×, 3/4 + 1/4 = -(+)= ?= ×, 2 + 4/9 = 7/8 + 3/8 = ?= ×0, 3 - 2/3 = 3/10 +1/5 = ×100= 10×, 3/4 - 1/2= 4/5 - 7/10 = ×8= ×7, 1/6 + 1/2 -1/6 = 2 - 1/6 -1/3 = 0. 56?= ×100, ?17, -(+)= ×4= ×4, ，19, 7/8 + 3/8 = ×= ×4, ?, 3/10 +1/5 = ?= 4×, ×, 4/5 - 7/10 = ×= ×8, ×, 2 - 1/6 -1/3 = ×= ×4, ?17, 1?5, ×= ×0, ，19, 6?12,
×50, ?, ,, ?=
30×, ×, 17×40, 1?=
×3, ×, 100,63, ×=
×2, 1?5, ，, ?=
×, 6?12, ×, 0?=
×, ,, 14,, ×102=
1,, 17×40, ?, 9??4= ×, 100,63, ×500, ××4= ?, ，, ,=
10,, 4×, 3/4 + 1/4 = 1/6 + 1/2 -1/6 =
4?20, ，1