Mathematics examination paper and answer in the second volume of the fourth grade

First, multiple-choice questions. (5 points)

1,129+32 ÷ (11×13) The first step in the calculation should be ().

Addition, division, multiplication

2,56×8×5=56×(8×5)( )

A, multiplicative commutative law b, multiplicative associative law c, multiplicative distributive rate d, additive associative law

3. The formula equal to 97×25 is ()

a 、( 97+3)×25 B 、( 100-3)×25 C、 100×25-3

4, the following figures, read-only zero is ()

a、B、 1.005 C、 100.07 D、20 10.30

5. Move the decimal point 0.02 one place to the left and three places to the right to get ().

a、2 B、0.2 C、20 D、200

Second, fill in the blanks. (27 points, 1.5 points per space)

1, the sum of two numbers times a number. You can multiply them by this number () and then multiply them by (). This is the law of (). Expressed in letters: ().

2. Multiply the first two numbers, or multiply the last two numbers first, and the product remains unchanged. This is the law of (). Use letters to indicate ().

3. When calculating (340+32 1)÷(300-299), both () method and () method should be calculated, and then () method should be calculated.

4, a number plus 0, still have to (); Addendum equals subtraction, and the difference is (); 0 divided by a non-zero number, but also (); Multiplying a number by 0 still gets ().

This car runs 480 kilometers in 6 hours. Fill in the following table at this speed:

Time/hour 1 4 12

Distance/km 240 400

Third, the calculation problem. (33 points)

1, oral test (8 points)

12×25= 32× 125= 120×25×4= 20+80÷2×3=

0÷43= 52-0+300= 43÷43= 6+ 15× 10=

630÷9÷7= 45+8-25= 67-(23+ 17)= 40×(2+3)=

60÷(2×3)= 50+ 100÷2= 900÷( 10×9)= 5+2-5+2=

2. Do it simply if you can: (16 points)

7826-(826- 1300)= 87×99+87= 125×88=

54× 102= 125×(4+8)= 36× 1 1 1+888×8=

65×34+34×34+34= 25× 13×4=

3, column calculation (9 points)

1, the number a is 6 and the number b is 8. What's 25 times their total?

2.303 What's the difference between 201minus 303?

What is the sum of the quotient of 3, 25 and 30 plus the product of 30 and 75?

Fourth, the application problem. (35 points)

1. A factory originally planned to produce 4,800 farm tools a year, but actually completed the task in 10 months. How much more farm tools are actually produced each month than originally planned? (5 points)

A train travels 366 kilometers in 6 hours in the morning and 276 kilometers in 4 hours in the afternoon. How many kilometers more in the afternoon than in the morning? (5 points)

3. The school bought five boxes of badminton, each box 12, and used 240 yuan. How much is badminton on average? (5 points)

4. The heights of the six players in the third group are 128 cm, 136 cm, 140 cm, 132 cm, 124 cm and 120 cm respectively. What is their average height? (5 points)

5. The school bought 530 sets of desks and chairs, including one desk 168 yuan and one chair, 32 yuan. * * * How much did it cost? (5 points)

6. Comparative calculation. (10)

On Sunday, eight students went to visit the science and technology exhibition. * * * paid the tickets to 80 yuan, and each student went to 4 yuan by bus.

(1). How much did each person spend?

(2) What other questions can you ask?

Standard answer:

First, multiple-choice questions (5 points)

1-5，C； b； b； c； B

Fill in the blanks (27 points, 65438+ 0.5 points per grid)

1, which are the distribution laws of addition and multiplication respectively, and a× (b+c) = a× b+a× c.

2. Multiplicative associative law, (a×b)×c= a×(b×c)

3. Add, subtract, multiply and divide

4. Original number, 0, 0, 0

5、80,3,320,5,960

Third, the calculation problem