直接写得数。20.4-0.7=0.1+0.01=70.7÷35=1.6×(1.6-1.6)=0.25×2.3×4=13 - 14 =12×4÷12×4=44÷ 1130 =_刷题宝

题干

直接写得数。

20.4-0.7=

0.1+0.01=

70.7÷35=

1.6×(1.6-1.6)=

0.25×2.3×4=

1

3

-

1

4

=

12×4÷12×4=

44÷

1130

=

上一题下一题 0.0难度选择题更新时间:2017-09-27 11:07:01

答案(点此获取答案解析）

20.4-0.7=19.7

0.1+0.01=0.11

70.7÷35=2.02

1.6×(1.6-1.6)=0<

同类题1

解释代数式3a（写出2个它可表示的实际意义）：____

同类题2

人们生活水平提高的根本原因是什么？

同类题3

Lincheng is a new developing city. There are lots of popular restaurants. Although they are not famous, they are good places to have meals.

Qingteng Yuan

Main dishes: Many different fish, meat and chicken dishes

Specials: Vegetable salad (¥20),

Roast beef (¥48 on weekdays, ¥38 on weekends)

Fruits (Free): Watermelon, apples, bananas, oranges

Tel: 876-2198

Opening Hours: 11:00 a.m.—1:00 a.m.

Ruihai Drinking

Building

Mainly all kinds of meat, pork, beef and mutton.

Specials: Roast pork (only offered on Saturday, ¥50 each)

Drinks are not allowed to take except VIP.

Tel: 897-6543

Opening Hours: 11:00 a.m.—1:30 a.m. (VIP 24 hours)

Rujia Restaurant

Mainly dumplings and noodles.

Specials: Beef and cabbage dumplings (¥5 each on weekdays, ¥4.5 on weekends)

Dumplings can be taken away.

Tel: 432-0945

Opening Hours: 11:30 a.m.—10:00 p.m.

Linglong Sea Food

Mainly sea food.

Specials: Roast fish (¥25 each)

Tel: 287-9056

Opening Hours: 11:00 a.m.—12:00 p.m. (From Monday to Thursday)

11:00 a.m.—2:00 a.m. (Friday, Saturday, Sunday)

同类题4

下面是“经过已知直线外一点作这条直线的平行线”的尺规作图过程．

已知：如图1，直线l和直线l外一点P．

求作：直线l的平行直线，使它经过点P．

作法：如图2．

（i）过点P作直线m与直线l交于点O；

（ii）在直线m上取一点A（OA＜OP），以点O为圆心，OA长为半径画弧，与直线l交于点B；

（iii）以点P为圆心，OA长为半径画弧，交直线m于点C，以点C为圆心，AB长为半径画弧，两弧交于点D；

（iv）作直线PD．

所以直线PD就是所求作的平行线．

请回答：该作图的依据是____．

同类题5

豌豆是人们广泛种植的农作物，也是研究植物性状遗传的常用实验材料．用圆粒豌豆与皱粒豌豆杂交，子一代都是圆粒；子一代种下去后自花传粉，收获的子二代有圆粒和皱粒两种，数量统计结果如下图．

小学学科试题库

初中学科试题库

高中学科试题库