一、 计算
0.78×18÷0.15 2.07÷0.23÷0.45 7.28﹢3.2÷2.5
7.1÷2.5 1.÷0.54 42ⅹ﹢25ⅹ=134
13(ⅹ﹢5)=169 3.6ⅹ-ⅹ=3.25 3.4ⅹ﹣48=26.8
0.35×1.25×2×0.8 9.16×1.5-0.5×9.16 0.85×199
4.2÷3.5 54÷3 18×6
4×230 560÷40 72-48
124×73 46×215 224×36
638÷72 316÷53 272÷68
[1-()]÷
-= 2+= +-=
1--= +-= +-2=
-= += ++
0.3χ= 45 χ+χ=28 χ- =
+- ++ 2--
+++ -(-) +
+= += 1-=
+= -= +=
-= 1-= +=
Ⅹ-= +Ⅹ= 2Ⅹ-=
+(-) 2-- -+
68- 7.5 + 32-2.5 -( -) 1-=
+= -= +=
+= -= --=
7-= ++= ++=
+= -= +-=
X+= —x = X-(-)=
1--= ++ 1--
+++ -(-) -(+)
0.15×0.6= 7÷40= 2-=
+= += 1.2÷2.4=
-= 0.÷8= 0.75÷0.25=
10-0.06= += 12.5×80=
+= 0.53= +=
5— = += +=
χ+ = χ- = χ-=1
7- - + + 6- (- )
-= -= 1+=
+= -= +=
+= -= 6=
5= 0.125×8= 6.25×13=
χ+ = 4χ-1.6χ=36 X+=
7.8-8.75+2.2-1.25 7.8×1.17-7.8×0.17 28÷56=
7-- -(+) +(-)
+= -= -=
5- = 1--= 5÷0.001=
2.5×4= += -=
X+= 2X-=1- 5.5X-3X=15
-(+) -- +++
+- ++ --
+= += 1-=
-= += -=
+= 2-=
Ⅹ-= 2Ⅹ-=
0.5×20= 0.35÷5= 2.2-2=
0.06÷3= 2.5+3.5= 1.5÷0.5=
12.2+0.2= 1.35×4= -=
+= += 1-=
+= -= +=
1-= ++ 1--
+= += 0.32=
-= 4÷6= -=
+0.2= -1= 1-=
+= += +=
0.32= -= 4÷6=
-= +0.2= -1=
1-= += +=
12.5×8= 14-22= -=
0÷= 0.25+0.4 2.4+0.06=
0×= 2-= -=
+= 12.5×8= 14-22=
-= 0÷=
3 - - - 10- - + - +
72×0.81+10.4 7.06×2.4-5.7 50.4×1.9-1.8
3.76×0.25+25.8 0.75×18÷0.15 2.07÷0.23÷0.45
21.36÷0.8-12.9 7.28+3.2÷2.5 1.08×0.8÷0.27
2.05÷0.82+33.6 44.28÷0.9÷4.1 9.07-22.78÷3.4
2.7×0.8×3.4 12.3×3.1+5.6 4.9×3.2-2.5
36.4-6.4×5.3 (1.8-1.5)×15 9.8×0.6-1.2×1.2
3.87×4+6.13 16-2.54×6 213.6÷0.8÷0.3
16.06÷5.5 1.7 42÷(5.25÷0.25) 6.48÷0.12÷10.8
0.25×4.78×4 0.65×201 4.8×0.25 1.5×105
2.33×0.5×4 1.2×2.5+0.8×2.5 5.2×99
1.25×8.8 1.25×32×0.25 4.6×9.7+5.4×9.7
5.9×12.8-2.8×5.9 7.8×3.3+5.7×7.8+7.8 0.25×36
0.25×0.73×4 7.6×0.8+0.2×7.6 0.85×199
0.25×8.5×4 1.28×8.6+0.72×8.6 12.5×0.96×0.8
3.12+3.12×99 28.6×101-28.6 0.86×15.7-0.86×14.7
2.4×102 (2.5-0.25)×0.4 9.16×1.5-0.5×9.16
63.4÷2.5÷0.4 930÷0.6÷5 32.4×0.9+0.1×32.4
+= 1.2÷2.4= -=
0.÷8= 0.75÷0.25= 10-0.06=
+= 12.5×80= 2.40.03=
0.5+= 7.5-2.5= 0.39÷13=
+= 0.53= +=
5— = += +=
x+= x-= x-(+)=
++ 60.62-(9.2+12.62) 6.8++3.2+
-- ++- -(-)
+= -= -=
-= += -=
1- = -= +=
-= += -=
+= 6-(-) -(+)
X+= —x = X-(-)=
+(+) +- -(+)
+++ +++ 5--
+ = 6.8–0.08= —=
160×5= 1.44÷9= + =
2.76×100= 8.7–1.9–3.1= 48÷0.6=
+ 1 = - = 0.14×6=
0.15×0.6= 7÷40= 2-=
+= ++ 2-(+)
Ⅹ-= +Ⅹ= Ⅹ-=
+- +++ -(-)
2-=
20=
6--
0.9×100= + = 0.÷16=
10-9.12= 0.7÷3.5= 0.8×125=
+ = 3 - - - 7.8×1.17-7.8×0.17
+ = 1 - = - =
x + = - x= 4x - =2-
1-
x + = - x= 4x - =2-
x+ =1 X- = x -(+)=
Ⅹ-= +Ⅹ= 2Ⅹ-=下载本文