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Anonymous users2024-02-06How much is 3 times 7, answer 21
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Anonymous users2024-02-051. Fill in the blanks.
1. The sum of all the side lengths of a figure is called the ( ) of this figure
2. The circumference of a square is 80 cm, and its side length is ( ).
25+25+25 is rewritten as multiplication, the equation is ( ), and the product is ( ).
4. A square swimming pool, it takes 120 meters to walk around this swimming pool, and the side length of this swimming pool is ( ) meters.
5. The product of three digits multiplied by one digit is the maximum number of ( ) digits, and the minimum number of digits is ( ) digits.
6. The length of a rectangle is 12 decimeters, and the width of the coarse tomato is 8 decimeters. The circumference is ( ) decimeters.
7. A rectangle is 9 cm long, 3 cm less than the length, and its circumference is ( ).
6 times is 5 times ( ) is 650.
9. The circumference of a square must be ( ) times the length of the side.
Multiply by any number to get ( ).
11. A 36 cm long iron wire, surrounded by a square, the side length of the square is ( ) cm.
The product of 7 is the number ( ).
2. Judgment, in ( ) the right hit "the wrong hit" ".
There are two zeros at the end of the product of 4. （
2. The side length of the square is 6 cm, and the circumference is 24 cm. （
The product of 9 is less than the product of 21 0. （
4. The circumference of the rectangle is 60 cm, the length is 18 cm, and the width is 42 cm. （
3. Choice (Fill in the serial number of the correct answer in parentheses.) Envy.
1. The length of a rectangle is 8 meters, the width is 4 meters, and the circumference of this rectangle is ( ) meters.
a、12 b、24 c、32
2. The product of two digits multiplied by one digit is ( ).
a, four-digit b, three-digit c, three-digit, or four-digit.
3. The circumference of a square is 64 meters, and the length of its side is ( ) meters.
a、16 b、128 c、256
The product of 8 has ( ) 0 at the end.
a, 2 b, 3 c, 4.
4. Calculations. 1. Oral arithmetic.
2. Calculate vertically.
3. Off-type calculation.
5. Solve problems.
1. The students do exercises, the boys stand in 5 rows, 26 people in each row, the number of girls is twice the number of boys, how many girls are there?
2. A rectangular playground, 100 meters long and 40 meters wide, how many meters do you have to run around this playground twice?
3. The school carried out the activity of learning from Lei Feng, and the first class of the third grade did 235 good deeds, and the total number of good deeds done by other classes was 4 times that of the first class of the third grade. How many good deeds did the whole school do?
4. A rectangular vegetable field, 18 meters long and 9 meters wide, one side is against the wall, and the other three sides are surrounded by bamboo fences. How many meters is a bamboo fence long?
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Anonymous users2024-02-041. True/False questions (3 points for each question, 12 points in total).
1.A two-digit number multiplied by 8 must be a two-digit number. (
2.0 times 5 equals 5 (
3.9 times 8, the equation is written 9 8 (
4.Add 5 identical numbers and sum is 5 times this number. (
2. Fill-in-the-blank questions (2 marks).
Fill in ">" or "=" in
3. Oral arithmetic (8 points).
4. Calculation questions (4 points for each question from 1 to 8, 5 points for each question from 9 to 12, a total of 52 points).
5. Written narrative questions (4 points for each question, 8 points in total).
1.What is 1021 times 9?
2.7 times 1200, what is the product?
6. Practical questions (6 points for each question, 18 points in total).
1.Xiaoli jumped rope 47 times at a time, Xiaohua talked about burning 3 times as much as Xiaoli, how many jumps did Xiaohua jump at a time?
2.The school bought 35 bottles of red ink, and the number of vertical traces of the blue ink bottles bought was 4 times the number of bottles containing fiber in the red ink, how many bottles of blue ink did the school buy? How many more bottles of blue ink than red ink?
3.The third grade bought 3 sets of chess, each pair of 4 yuan 1 jiao 5 points, and there are 6 jiao 8 points left, how much money did the third grade have?
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