资源描述
1.口算以下各题
5+ =
72-=
-=
+16 =
12- =
24-=
+ =
4- =
+10=
+4=
14- =
9-=
+9=
+ =
+12=
+32=
+ =
+ =
+16=
+16 =
+ =
+0=
+=
+12=
+ =
45× =
9×=
× =
×100=
18× =
× =
17× =
5 × =
× =
×12=
×0=
× =
× =
×12=
× =
45× =
9×=
× =
×100=
18× =
× =
17× =
5 × =
× =
×12=
× =
45× =
9×=
× =
×100=
18× =
× =
17× =
5 × =
×32=
× =
× =
×16=
×16 =
× =
5× =
72×=
×=
×16 =
12× =
24× =
× =
4×=
×10=
×4=
14× =
9×=
×9=
45× =
9×=
× =
×100=
18× =
× =
17× =
5 × =
× =
×12=
×0=
× =
×12=
×0=
× =
×12=
× =
45× =
9×=
× =
×100=
18× =
× =
17× =
5 × =
× =
×12=
× =
45× =
9×=
× =
×12=
× =
45× =
9×=
× =
×100=
18× =
× =
6.5×5 6.5=
1×0.85=
4.73×3.9=
47.3×3.9=
47.3×0.391=
0.473×0.39=
×5=
1×1.25=
×0.09=
×0.03=
×0.125=
××0.4=
9×0.18=
×16=
×8=
×4=
×2=
××4.8=
47.3×0.391=
0.473×0.39=
×0.09=
×0.03=
×12=
×0=
0.77×1.1=
1.2-0.08=
8- 0.52=
2.5× 3.6 =
×6=
5.0.8×0.92=
×0.4=
5.43×0.86=
78.58×3.7=
0.85×1.01 =
9×2.3=
0.1×0.01 =
0.28×35=
4.68×4.5=
0.25×0.5=
2.5×1.25=
25.7×3.29=
6.71×25.7=
8- 0.52=
2.5× 3.6 =
×0.09=
×0.03=
×0.1=
××2=
×11=
1.6×0.5=
2.5×0.4=
0.36×0.9=
1.25×8=
1.6×0.4=
0.48×4=
0.9×0.6=
13.2+4.8=
6.3-0.9=
0.25×2.4=
3×1.03=
+9=
+32=
+ =
+ =
2.5×0.4=
0.36×0.9=
×0.4=
5.43×0.86=
+16=
+16 =
+ =
5+ =
72-=
-=
+16 =
12- =
24-=
+ =
4-=
+9=
+ =
+12=
+0=
+9=
+32=
+10=
+4=
14- =
9-=
+9=
+ =
+12=
+0=
+=
+12=
+ =
45× =
×100=
18× =
× =
17× =
5 × =
× =
×12=
×0=
9×=
× =
× =
×12=
× =
45× =
9×=
× =
×100=
18× =
× =
17× =
5 × =
×32=
×16=
×16 =
× =
5× =
72×=
×=
×16 =
12× =
× =
× =
24× =
× =
4×=
×10=
×4=
14× =
9×=
×9=
× =
×12=
×0=
× =
×12=
× =
45× =
9×=
× =
×100=
18× =
× =
17× =
5 × =
×4=
×12=
×16 =
×100=
1÷4=
10÷5=
7÷3=
1×1/2÷5=
4/5÷2=
1/4÷4=
18× =
× =
× =
4÷1/2=
2÷2/3=
2÷1/3=
4÷1/3=
4÷1/4=
4÷1/4=
2÷1/2=
8÷2/3=
5/12÷3=
6÷1/4=
2/3÷1/5=
4/9÷2/3=
8/3÷4=
1/3÷3/4=
5/6÷1/4=
7/12÷7=
5/7÷7/5=
6/5÷3=
10÷1/2=
25÷5/6=
5/6÷4/3=
6÷3/5=
6÷3/4=
6÷1=
6÷3/2=
6÷5/2=
3÷1/4=
6÷2/9=
4÷4/9=
4÷1/3=
7÷1/5=
4÷3/4=
1/12÷5/8=
47÷8=
6÷23=
1÷38=
2/3÷1/9=
54÷2/3=
35÷7/4=
16÷1/2=
÷1.5=
42÷8=
8×1/4=
1/5÷2/3=
7÷7/5=
3/4÷4=
7/9×6/5=
1/5+1/4=
9/4÷3/2=
5/18÷5/18=
8/3÷2=
2/5÷4=
4/7÷7/4=
100×8/15=
3/7×5/9=
12÷8/5=
2/3÷4/15=
5/12÷15/4=
6/25÷3/10=
7/20÷3/10=
写出下面各数的倒数。
1/9 12 5/13
1 2/3 1/4
5/18 2/5 4/7
7/5 7/9 3/4
6/5 1/5 3/40
5/8 8/9 5/11
填空
1、棱长为1厘米的正方体,体积是( )。
2、棱长为1分米的正方体,体积是〔 〕。
3、棱长为1米的正方体,体积是〔 〕。
4、1升=〔 〕立方分米
1毫升=〔 〕立方厘米
立方米=〔 〕立方分米
720立方厘米=〔 〕立方分米
填上适宜的单位。
一苹果的体积约是120〔 〕。
一个西瓜的体积约是8〔 〕。
一 台冰箱的容积约是150〔 〕。
一 个火柴盒的体积约是12〔 〕。
一 个墨水瓶的容积约是60〔 〕。
一个热水瓶的溶剂约是2〔 〕。
一块橡皮的体积约是10 〔 〕。
一 本词典的体积约是900〔 〕。
一个文具盒的体积约是0.35〔 〕。
一个讲台的体积约是0.6〔 〕。
计算体积。
1、一个长方体,长20厘米,宽12厘米,高厘米。
2、一个正方体,棱长是6分米。
3、一个长方体底面积是60 立方厘米,高7厘米。
4、一个长方体,底面是边长为2平方分米的正方形,高5分米。
算一算。
12×1/2= 3/11×2= 3×2/9=
9/16×12= 10×7/15= 3/4×16=
7×7/10= 4×3/13= 21×5/14=
12×1/4= 1/3×3= 1/9×3=
5/2×2= 4/5×2= 6×1/2=
算一算。
3/4÷4= 7/9×6/5= 1/5+1/4=
9/4÷3/2= 5/18÷5/18= 8/3÷2=
6/13÷9= 5/8÷10= 8/15÷6=
16÷÷1.5= 42÷8=
8×1/4= 1/5÷2/3= 7÷7/5=
直接写得数
3/4×5/6= 3/7×1= 5/8×7/15=
0÷2/3= 8/15×9/16= 4/5×2/3=
4/5÷1/10×7/12= 5/9×4/5÷8/27=
8/11÷7/8×3/8= 3/7×14×1/3=
1、 计算题
3/7 × 49/9 - 4/3 12× 5/6 – 2/9 ×3
1、计算
4.8× 5/4 + 1/4 4/7 × 5/9 + 3/7 × 5/9
5/2 -〔 3/2 + 4/5 〕 7/8 + 〔 1/8 + 1/9 〕
2、简算
1、 直接写得数
5/9×3/10= 1/2×4/7= 7/9÷2/3=
2/5÷2/5= 5/9-3/9= 5/7+2/5=
3/4-2/5= 5/6×3/5= 4/7÷12=
2、计算
3/4 × 8/9 - 1/3 7 × 5/49 + 3/14
8×4/5+8 × 11/5 31 × 5/6 – 5/6
1、 计算
5/9 × 18 – 14 × 2/7
4/5 × 25/16 + 2/3 × 3/4
14×8/7–5/6 × 12/15
17/32 – 3/4 × 9/24
45 × 2/3 + 1/3 × 15
7/19 + 12/19 × 5/6
8/7 × 21/16 + 1/2
101 × 1/5 – 1/5 × 21
5/9-3/9= 5/7+2/5=
5/9-3/9= 5/7+2/5=
口算题卡
1、 写出下面的百分数
百分之十五〔 〕 百分之三十〔 〕
百分之十四点六〔 〕 百分之零点四〔 〕
2、 把下面小数或分数化成百分数
0.35=〔 〕% 1.02=〔 〕%
1=〔 〕% 0.012=〔 〕%
3/5=〔 〕% 7/8=〔 〕%
13/10=〔 〕% 1/5=〔 〕%
3、 把百分数化成分数
60%=〔 〕 32%=〔 〕 26%=〔 〕 45 %=〔 〕 95%=〔 〕 68%=〔 〕 37%=〔 〕 18%=〔 〕
1、 把下面百分数化成小数
15%=〔 〕 25%=〔 〕 16%=〔 〕
79%=〔 〕 35%=〔 〕 49%=〔 〕
12.5%=〔 〕 24.9%=〔 〕 13.5%=〔 〕
29.7%=〔 〕15.1%=〔 〕46.2%=〔 〕
40.5%=〔 〕 12%=〔 〕 28%=〔 〕
%=〔 〕 25.5%=〔 〕24.0%=〔 〕
11%=〔 〕 29%=〔 〕 53%=〔 〕
49%=〔 〕 42%=〔 〕 17%=〔 〕
1、口答
〔1〕8是5的百分之几?
〔2〕5是8的百分之几?
2、求出下面的商,并且所得的商化成百分数。
3÷8 20÷16 3.5÷7 22.4÷14
3、一个田径队有男生20人,女生15人,男生人数是女生人数的百分之几?
4、一个田径队有男生20人,女生15人,女生人数是男生人数的百分之几?
1、口答
〔1〕8比5多百分之几?
〔2〕5比8少百分之几?
2、求出下面的商,并且所得的商化成百分数。
1÷8 30÷12 4.5÷9 22.4÷14
4、某厂的一种产品,原来每件本钱96元,技术革新后,每件本钱降低到了84元,每件本钱降低了百分之几?
第 66 页
直接写得数
1/7×4= 8×1/4=
2/5×1/10= 5/6×4/3=
6×3/8= 1/5×20/3=
5/8×24/25= 7/12×3/14=
1×8/9= 4/7×7/25=
3/8×27= 5/9×3/10=
1/5×5= 39×5/13=
2/7×0= 2/7÷5=
1/2÷3= 3/4÷6=
2/3÷3/4= 27/ 20÷3/4=
1/4÷1/3= 1÷4/9=
12÷4/7= ÷14=
3/5÷11/5= 7/15÷7/3=
20÷4/5= 4/5÷20=
81÷9/5= 44÷11/10=
2/10÷2/7= 9×3/2=
3/8×5/6= 0×5/7=
7/12÷7/4 = 6×3/8=
21/10÷3/5= 8/27÷2/9=
5/8÷2/3= 1/9÷2/3=
7/90×5= 10÷1/4=
5/16×8/15= 1/6÷4/9=
4/9×6= 1/5÷3/20=
3/8×5/6= 0×5/7=
21/10÷3/5= 8/27÷2/9=
35×3/14= 2/7÷3/7=
7÷2/7= 6/7÷3=
5/8÷3/8= 14/15÷7/5=
8/5÷4/5= 3/25÷1/10=
21/20÷7/3= 1/2÷4=
7/4÷16= 9/10÷3/5=
8/11÷4/9= 3/16÷1/2=
8/5×3/4= 12÷2/3=
6/13÷1/2= 1/6×3=
5/8÷3/8= 14/15÷7/5=
21/20÷7/3= 1/2÷4=
1÷1/4= 1/2÷5/8=
1/4÷7/3= 1/10÷3/5=
3/5×3/4= 42÷2/3=
1/3÷2/3= 42/5÷7/10=
56×3/7= 1÷25/8=
7/9÷5/14= 6/13×13/4=
4/5×10= 12÷3/7=
6×1/7= 3/10×2=
5×4/15= 24×3/8=
15×2/3= 1/8×4=
9×2/27= 100×3/5=
7/9×3/4= 6/7×5/6=
27/16×4/5= 8/9×9/8=
7÷7/13= 3/25÷1/10=
1/6×8/15= 3/5×3/4=
42÷2/3= 1/3÷2/3= 42/5÷7/10= 7/9÷5/14= 6/13×13/4= 35×3/14=
9/25×5/6= 12/13×1/4=
2×2/3= 3/4×3/5=
+= -=
+= +=
+= -=
+= -=
+= -=
5/7×4/5= 120×2/3=
1/3×0= 4/5×2=
5/11×2/3= 8/9×2/6=
7×1/12= 600×7/12=
5/6-1/3= 5/3+7/9=
3/5÷3= 6/13÷4=
8/15÷10= 8/5÷6=
3/8÷6= 3/5÷15=
3/4÷6= 7×1/14=
15÷3/5= 20÷4/5=
8/9÷2/3= 20×4/5=
15×3/5= 8/9×2/3=
3/4×16= 5/9÷5=
9÷3/5= 2/3÷3/2=
1/2+1/3= 2/3÷3=
5/4÷5/8= 2/3×30=
40÷2/5= 1÷5/12=
1/3÷1/3= 2/5÷2=
5/8×4/5= 26×4/13=
5/21÷5/6= 21×2/7=
1/7×4= 8×1/4=
2/5×1/10= 5/6×4/3=
6×3/8= 1/5×20/3=
5/8×24/25= 7/12×3/14=
1×8/9= 4/7×7/25=
3/8×27= 5/9×3/10=
1/5×5= 39×5/13=
2/3÷3/4= 27/ 20÷3/4=
1/4÷1/3= 1÷4/9=
12÷4/7= ÷14=
3/5÷11/5= 7/15÷7/3=
20÷4/5= 4/5÷20=
21/10÷3/5= 8/27÷2/9=
5/8÷2/3= 1/9÷2/3=
计算以下各题
81÷9/5= 44÷11/10=
2/10÷2/7= 9×3/2=
3/8×5/6= 0×5/7=
7/12÷7/4 = 6×3/8=
5/8÷3/8= 14/15÷7/5=
8/5÷4/5= 3/25÷1/10=
21/20÷7/3= 1/2÷4=
7/4÷16= 9/10÷3/5=
8/11÷4/9= 3/16÷1/2=
8/5×3/4= 12÷2/3=
6/13÷1/2= 1/6×3=
3/5×3/4= 42÷2/3=
1/3÷2/3= 42/5÷7/10=
56×3/7= 1÷25/8=
7/9÷5/14= 6/13×13/4=
4/5×10= 12÷3/7=
7/16×4/5= 8/9×9/8=
7÷7/13= 3/25÷1/10=
6×1/7= 3/10×2=
5×4/15= 24×3/8=
15×2/3= 1/8×4=
9×2/27= 100×3/5=
7/9×3/4= 6/7×5/6=
9/25×5/6= 12/13×1/4=
2×2/3= 3/4×3/5=
+= -=
+= +=
+= -=
+= -=
5/7×4/5= 120×2/3=
1/3×0= 4/5×2=
5/11×2/3= 8/9×2/6=
7×1/12= 600×7/12=
5/6-1/3= 5/3+7/9=
3/5÷3= 6/13÷4=
8/15÷10= 8/5÷6=
3/8÷6= 3/5÷15=
3/4÷6= 7×1/14=
15÷3/5= 20÷4/5=
8/9÷2/3= 20×4/5=
15×3/5= 8/9×2/3=
3/4×16= 5/9÷5=
9÷3/5= 2/3÷3/2=
1/2+1/3= 2/3÷3=
5/4÷5/8= 2/3×30=
40÷2/5= 1÷5/12=
1/3÷1/3= 2/5÷2=
5/8×4/5= 26×4/13=
5/21÷5/6= 21×2/7=
算一算。
1÷4= 10÷5= 7÷3=
1×1/4= 10×1/5= 7×1/3=
8/9÷6= 4/15÷12= 3/8÷5=
6/13÷9= 5/8÷10= 8/15÷6=
1/2÷5= 4/5÷2= 1/4÷4=
算一算。
4÷1/2= 2÷2/3= 2÷1/3=
4÷1/3= 4÷1/4= 4÷1/4=
2÷1/2= 8÷2/3= 5/12÷3=
6÷1/4= 2/3÷1/5= 4/9÷2/3=
8/3÷4= 1/3÷3/4= 5/6÷1/4=
算一算。
7/12÷7= 5/7÷7/5= 6/5÷3=
10÷1/2= 25÷5/6= 5/6÷4/3=
6÷3/5= 6÷3/4= 6÷1=
6÷3/2= 6÷5/2= 3÷1/4=
6÷2/9= 4÷4/9= 4÷1/3=
答算一算。
3/4÷4= 7/9×6/5= 1/5+1/4=
9/4÷3/2= 5/18÷5/18= 8/3÷2=
2/5÷4= 4/7÷7/4= 100×8/15=
3/7×5/9= 12÷8/5= 2/3÷4/15=
5/12÷15/4= 6/25÷3/10= 7/20÷3/10=
写出下面各数的倒数。
1/9 12 5/13
1 2/3 1/4
5/18 2/5 4/7
7/5 7/9 3/4
6/5 1/5 3/40
5/8 8/9 5/11
8/9÷6= 4/15÷12= 3/8÷5=
6/13÷9= 5/8÷10= 8/15÷6=
1/2÷5= 4/5÷2= 1/4÷4=
1÷4= 10÷5= 7÷3=
算一算。
4÷1/2= 2÷2/3= 2÷1/3=
4÷1/3= 4÷1/4= 4÷1/4=
2÷1/2= 8÷2/3= 5/12÷3=
6÷1/4= 2/3÷1/5= 4/9÷2/3=
8/3÷4= 1/3÷3/4= 5/6÷1/4=
算一算。
7/12÷7= 5/7÷7/5= 6/5÷3=
10÷1/2= 25÷5/6= 5/6÷4/3=
6÷3/5= 6÷3/4= 6÷1=
6÷3/2= 6÷5/2= 3÷1/4=
2÷1/2= 8÷2/3= 5/12÷3=
6÷1/4= 2/3÷1/5= 4/9÷2/3=
算一算。
3/4÷4= 7/9×6/5= 1/5+1/4=
9/4÷3/2= 5/18÷5/18= 8/3÷2=
2/5÷4= 4/7÷7/4= 100×8/15=
3/7×5/9= 12÷8/5= 2/3÷4/15=
5/12÷15/4= 6/25÷3/10= 7/20÷3/10=
填空
1、棱长为1厘米的正方体,体积是( )。
2、棱长为1分米的正方体,体积是〔 〕。
3、棱长为1米的正方体,体积是〔 〕。
4、1升=〔 〕立方分米
1毫升=〔 〕立方厘米
立方米=〔 〕立方分米
3/4÷4= 7/9×6/5= 1/5+1/4=
9/4÷3/2= 5/18÷5/18= 8/3÷2=
6/13÷9= 5/8÷10= 8/15÷6=
16÷÷1.5= 42÷8=
8×1/4= 1/5÷2/3= 7÷7/5=
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