First, fill in the blanks.
1, the examination paper for the first monthly exam of the second volume of second grade mathematics: 20÷4= (), pronounced as (), where 20 is (), the divisor is (), and the quotient is ().
2. Three fives add up to (), and the multiplication formula you use is (). The number of 19 greater than 36 is (), and the number of 16 less than 50 is ().
3, 18÷6= (), and the multiplication formula you use is (). The meaning of this formula is to divide () into () parts on average, and each part is ().
4, 32÷8= (), the multiplication formula you use is (), which means that there are () () in 32.
5.2 1 is divided by 3 to get 7, which is written as () ⊙ () = ().
6、
A * * * has (), () × () = ()
( )×( )=( ) ( )÷( )=( )
Five times of 7 plus 2 is (), and the sum of 17 is ().
Eight or eight times is (), and this number is less than 20 ().
Second, judge whether it is right or wrong. Mark "√" for the right and "×" for the wrong.
1、
This picture is the average score. ( )
2. How many digits does a number have? Calculate by division. ( )
3,36 ÷ 6 = 6 and 30÷5=6. These two formulas use the same formula. ( )
4. Divide a number into several parts equally, and how much is each part? Calculate by division. ( )
5. It is correct to write 2×3=6 as 6÷2=3 and 6÷3=2 ().
Choose the correct answer and fill in the brackets.
1, which can be listed as ().
a、3×3=9 B、 10÷2=5 C、 10÷5=2
2. Divide 8 pears to 2 children equally, and each child will be divided into 4. The correct formula is ().
a、8×2= 16 B、8÷2=4 C、8÷4=2
3、
Xiaohong's circle method refers to ().
A, four fours plus b, 16, and four fours.
C, divide 16 into four parts, each of which is four parts.
4、 5
The countable type is ()
?
a、 15÷5=3 B、 15÷3=5 C、5×3= 15
5, 54-(8+22), calculate () first.
A, B are outside brackets, and C are outside brackets, in order.
Fourth, write arithmetic directly.
4÷ 1= 1×5= 5÷5= 2×3= 50-25=
60+ 15= 2×4= 3×4= 10÷2= 3÷3=
14÷2= 12÷3= 15÷3= 27+8= 16-7=
16÷4= 15÷5= 20÷5
Five, column vertical calculation.
67+8-29 56- 17+45 80- 17-39
52-28+ 18 47+23+7 62-8+36
Six, column calculation. (3 points for each question, *** 15 points)
1, dividend is 24, divisor is 4, what is the quotient? 2. How many 6s are there in18?
3. Divide 20 into 5 equal parts. How much is each part?
4,30 minus 2 times 4, what's the difference?
5. What is the sum of three plus 12?
Seven, solve the problem. (5 points for each question, ***30 points)
1. A story book has 90 pages. Xiao Ming read 15 on the first day and 39 on the second day. How many pages are left? (Answer in two ways)
The students went for a spring outing. Grade one is divided into five groups, with an average of 8 people in each group. Forty-five people went to the second grade. How many people went in two grades?
3. Grade three students go skipping rope together. a * * * has 2 1 person, and each group has 3 people. How many groups can it be divided into?
Mom bought 5 Jin of apples with 20 yuan money. How much does it cost for her to buy 7 Jin?
There are six ping-pong balls in a box. How many ping-pong balls can five such boxes hold? 18 how many boxes can table tennis hold?
6. Look at the picture carefully, ask the problem of division calculation first, and then calculate it in the table.
1 Q.?
② Formula:
③ Answer:
Eight, additional questions.
1, according to the formula, write two multiplication and division formulas respectively.
( )×( )=( ) ( )×( )=( )
( )÷( )=( ) ( )÷( )=( )
2. Circle according to the meaning of the division formula.
15÷3=5
3. Look at the picture and write the formula.
? Rice? Rice? Rice? Rice? Rice? rice
=
36 meters
4. Saw the log12m long into pieces 3m long. It takes 4 minutes for each saw. * * * once, how many minutes does it take?
5, 4 = 1 2 = 1.
2 = ()