1, 28÷4= () means () also means ()? It also means ().

2. find a rule to fill in the numbers?

① 1、2、4、7、 1 1、( )、( )。

② 12、 1、 10、 1、8、 1、( )、( )

3. Fill in the blanks with the correct units?

① The little red is 123() ② The flagpole is 13 ()? ③ The math textbook is very long () ④ A pencil is very long ().

There are three numbers whose sum and product are equal. These three numbers are (), () and (). ?

5. Fill in different numbers in the formula. ?

①( )×( )=( )×( ) ②( )÷( )=( )÷( )。

6.42 minus 7, minus () times to get 0.

7. It is known that the sum of the minuend, the minuend and the difference number is 16, and the minuend is (). ?

8. There are three different coats and four different pants. Can be made into () different sets of clothes.

9. After Xiao Fang gave Kobayashi six pictures, it was just like me. It turns out that Xiao Fang has more pictures than Xiao Lin.

Second, right or wrong (for painting √, wrong painting ×)

1. Using two to two to get four can only calculate a multiplication formula and a division formula. ( )?

2,2× 5 means that 2 and 5 are added ()?

3. Divide 10 apples to five children, and each child will get two apples. ( )?

4. A piece of chalk is about 6 meters long ()?

The right angle on the triangle is not as big as the right angle on the blackboard. ( )?

6, 3 meters > 300 cm ()?

7. The sum of the three smallest two digits is 30 ()

Third, the text problem

What is the result of adding 1 and 6 five times in a row?

2. How much is three sevens less than nine nines?

3. The number of B is 5 times that of A, and A is 7. What's the number of B?

4. For a division problem, the divisor is 4, the quotient is 7, and what is the dividend? ?

5. What's the difference between the smallest three digits and the smallest two digits?

Fourth, the application questions

1. There is a rope with a length of12m. As a skipping rope, how many times should I cut it every 2 meters?

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2. After a rope is folded in half for 3 times, each rope is 3 meters long. How long is this rope?

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3. To celebrate the New Year's Day, the school planted colorful flags on both sides of the 28-meter-long playground, one colorful flag every 4 meters (both ends are inserted), and one * * *, how many faces should be inserted?

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Xiaoqing did a division problem, and looked at the ten digits and single digits of the dividend upside down. After dividing by 6, the result quotient is 4. What should be the correct quotient?

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5. There are 6 trees, and you should plant 4 rows with 3 trees in each row. How should we plant them? Please draw a picture.

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6. There is a team, from front to back, Xiao Cong ranks fourth. How many children are there in this team?

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