Class name score
Fill in the blanks. 18%
1, 4 kg of butter peanuts are distributed to 20 children on average, and each child gets these peanuts, which is equivalent to 1 kg of peanuts, that is, () kg.
2. A Mao Mao grows from a larva to an adult, doubling every day, from 20 days to 40 cm, and growing to 10 cm is the () day.
I bought 48kg chestnuts in the store and sold them on the opening day. There are () kilograms left, and () kilograms left.
4, a batch of 30 parts, the average distribution of 5 people to complete, 2 people to complete this batch of parts, 2 parts accounted for the total number of parts.
5. Add10g salt into 90g water. If salt accounts for brine, add 10g salt. At this time, salt accounts for brine.
6、
( ) ( ) ( ) 18
7. The sum of the simplest true fractions whose denominator is 12 is.
8 is a true score, a false score, and x may be.
9. A vegetable plot 12 hectare, in which potatoes are planted, with an area of () hectares. It is indicated by shading in the figure below.
Second, judge. 6%
1, a rope uses all its length, and there are meters left, so the length used is as long as the rest. ( )
2. The arithmetic in integer addition and subtraction is also applicable to decimal addition and subtraction. ( )
3. Class 5 (2), boys account for the whole class and girls account for the whole class. ( )
4. 1- can be regarded as-,and the result is. ( )
5.4m ................................................ as long as 1m ()
6. After a rectangular piece of paper is folded in half four times, the area of each small rectangle is the original rectangle. ( )
Third, solve the equation. 8%
X- = +X= 3X=4 X÷0.4=0. 16
Fourth, calculation. (as short as possible) 12%
+ + + - - +
- + - - + -( + )-
Sixth, the application problem. 56 %
1, a piece of iron is 4 square meters. After the first cut and the second cut, how much iron sheet is left?
2. A ribbon runs out of rice, and the rest is longer than the used rice. How many meters is this belt?
3. The rectangle is 2m in circumference, one of which is 1 m in width and the other is 1 m in length?
4. 30 tons of yellow sand. A car can be shipped every time, and B car can be shipped every time. How many points can two cars transport at a time?
5. What is the circumference of an isosceles triangle with a waist length of meters and a bottom length of meters?
6. For a 40-minute class in physical education class, it takes several hours to prepare for activities, several hours for teachers to demonstrate, and several hours for students to have free activities in the rest of the time. How much time do students have for free activities?
7.12m Use 20m rope for the first time and full length for the second time. What fraction of the full length is used for the first time?
8. If the air-conditioning factory completed the annual planning task in the first half of last year, then the same number was completed in the second half and the first half of last year. How much did the air-conditioning factory actually exceed the annual planned task last year?
9. Xiaoming has some stamps and gave them to Xiaohong 12. He has collected 18, and now he has exactly 50 stamps. How many sheets does he have?
10, Xiaoming has some stamps. He gave Xiaohong more than half of the stamps, and there were 50 left. How many sheets does he have?
1 1, Xiaoming and Xiaohong * * * have 50 stamps. If Xiaoming gives Xiaohong eight stamps, then their stamps are equal. How many stamps does Xiaoming have?
12, add 8 to a number, multiply 8, subtract 8, and finally divide by 8, and the result is still 8. What's this number?
13, construction of expressway. On the first day, half of the total length was less than 40 meters. The next day, the remaining half was more than 40 meters, leaving 60 meters. What is the total length of this highway?
14, a number divided by 12, Xiao Ming takes 12 as 18, and the result quotient is 20. What is the correct quotient?