NUMBER SYSTEM PRACTICE TEST FOR GRADE 4

Problem 1 :

5,600 is _____ more than 4,580.

Solution :

Let x be the unknown.

____ + 4580 = 5600

x + 4580 = 5000

x = 5000 - 4580

x = 420

420 more than 4580 is 5000.

Problem 2 :

7203 is 100 more than ____.

Solution :

100 + ____ = 7203

Let x be the unknown.

100 + x = 7203

x = 7203 - 100

x = 7103

100 more than 7103 is 7203.

Problem 3 :

The difference between 654 and 1,000 is _____.

Solution :

= 1000 - 654

= 346

The difference between 1000 and 654 is -346.

Problem 4 :

3,000 + ____ + 25 = 3,425.

Solution :

Expanded form of 3425 is 

= 1000 x 3 + 100 x 4 + 10 x 2 + 1 x 5

Missing number = 100 x 4

= 400

Problem 5 :

The sum of 4,681 and 500 is _____.

Solution :

= 4,681 + 500

= 5181

The sum of 4,681 and 500 is 5181.

Problem 6 :

5,642 in expanded form is:

Solution :

5,642 = 5 thousand + 6 hundred + 4 ten + 2 ones

= 5 × 1000 + 6 × 100 + 4 × 10 + 2 × 1

                              = 5,000 + 600 + 40 + 2

Problem 7 :

In 1,863, the digit _____ is in the tens place, and its value is ______.

Solution:

The digit is in the tens place = 6

Its value = 6 x 10 => 60

In 1,863, the digit 6 is in the tens place, and its value is 60.

Problem 8 :

When 349 is divided by 5, the quotient is _____ and the remainder is ____.

Solution :

Quotient = 69

Remainder = 4

Problem 9 :

Complete the number pattern.

5,576, 5,676, 5,776, ___, ___, ___.

Solution : 

5,576, 5,676, 5,776, 5,876, 5,976, 6076

Problem 10 :

Which of the following is the best estimate for the value of 386 × 8?

a)863     b)6,300    c)3,500    d)3,200

Solution :

= 386 × 8

= 3088

Option (d) is correct.

Problem 11:

Solution :

3 star = 27

1 star = 27/3 => 9

1 star = 9

4 moons = 32

1 moon = 32/4

1 moon = 8

9 × 8 = 72

Problem 12 :

What is the missing number?

_______ ---> subtract 18 ---> multiply 3 = 87

Solution:     

(x - 18) × 3 = 87

(x - 18) = 87/3

x - 18 = 29

x = 29 + 18

x = 47

So, the missing number is 47.

Problem 13 :

Complete the following number pattern.

1, 2, 3, 5, 8, 13, 21, ____, ____

Solution:

1 + 2 = 3

3 + 5 = 8

8 + 13 = 21

13 + 21 = 34

21 + 34 = 55

1, 2, 3, 5, 8, 13, 21, 34, 55.

Problem 14 :

Write the number that has the digit 7 in the thousands place value.

a) 6,970    b) 7,906   c) 9,607    d) 9,760

Solution :

7,906

Seven thousand nine hundred six

Option (b) is correct.