Mathematics Arithmetic Test 1a Answers

Introduction :

The Arithmetic test operations are addition, subtraction, multiplication and division. The properties of numbers are explained with the help of arithmetic operations. The primary arithmetic operations include real numbers, integers, complex numbers, rational numbers etc. The arithmetic operation is mainly used to solve basic algebraic expression problems, linear algebra problems etc. In mathematics arithmetic operations plays a important role for solving problems. The following are some of the example problems which explain the arithmetic operations.

Example arithmetic test problems with answers:

Addition problems:

Ex 1: Solve 40 + 5 + 8 + 3

Sol : The given problem is
= 45 + 8 + 3
= 53 + 3
= 56

Ex 2: Solve 4x + 2x + 3x

Sol : The given problem is
= 6x + 3x

= 9x
= 9x

Ex 3 : Solve 5x + 4y +2x +8y

Sol : The given problem is

= 5x + 4y +2x +8y

= 5x + 2x + 4y + 8y

= 7x + 4y

Subtraction problems:

Ex 1 : Solve 40 – 5 – 8 – 2

Sol : The given problem is
= 40 – 5 – 8 – 2
= 35 -8 – 2
= 27 – 2

= 25

Ex 2 : Solve 15x – 8x – 3x

Sol : The given problem is
=15x – 8x -3x

= 7x – 3x

= 4x

Ex 3 : Solve 7x – 4y -2x -5y

Sol : The given problem is

= 7x – 4y -2x – 5y

= 7x – 2x – 4y – 5y

= 5x – 9y

Multiplication problems:

Ex 1: Multiply 380 by 101

Sol : 380 × 101 means 101 times 380

Or 100 times 380 + one time 380

Or 38000 + 380

Or 38380

Therefore 380 × 101 = 38380

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Ex 2: Multiply 4( 2x + 4x) + 4( 5y)

Sol : Given problem is

= 4(2x + 4x) + 4(5y)

= 4(2x) + 4(4x) + 4(5y)

= 8x + 16x + 20y

= 24x + 20y

Division problems:

Ex 1: solve (1/4) + (2/8)

Sol : = (2/4) + (2/8)
= (2+2) / 8
= 4/8

= 1/2

Ex 2 : solve (3/10) – (5/20)

Sol : = (6/20) – (5/20)
= (6 – 5) / 20
= 1/20

Practice arithmetic test problems with answers:

The practice problems are given below for test preparation.

Q 1 : Solve 2x + 12y +8x +13y

Ans : 11x + 25y

Q 2 : Solve 5x + 6y -4x -3y

Ans : x + 3y

Q 3: Multiply 160 by 102

Ans : 16320

Q 4: Solve (4/6) + (1/12)

Answer: 3/4