Chapter 1 - Addition

Question 1

What is the sum of 300 and 256.56

Answer 1

Ans. 556.56

Question 2

Divide 200 by 50

Answer 2

Ans. 4

Question 3

What is addition?

Answer 3

Addition is the action of adding something to something else.

Question 4

What is algebra?

Answer 4

Algebra is the part in mathematics in which letters and other symbols are used to represent numbers in an equation or formula.

Question 5

Evaluate 3a -2b, if a is 10 and b is 4.

Answer 5

Ans. 22

Question 6

A salesman sold twice as much pears in the afternoon than in the morning. If he sold 360 kilograms of pears that day, how many kilograms did he sell in the morning?

Answer 6

Therefore, the salesman sold 120 kg in the morning and 240 kg in the afternoon.

Question 7

80 is what percent of 160?

Answer 7

Ans. 50%

Question 8

If you have 80 postal stamps and you start collecting more during this month until the total number of stamps reaches 120. The percent of increase in the number of stamps that you currently have is:

Answer 8

Ans. 50%

Question 9

Diameter: the longest distance from one end of a circle to the other. The diameter = 2 × radius.

Answer 9

The diameter is the longest distance from one end of the circle to the other.

Question 10

What is a straight angle?

Answer 10

Straight angle is a straight line. It has measure 180 °.