Addition

1) What is Addition ?
The process of calculating the total of two or more numbers or amounts.
Adding is the same as plus, increase, find the sum, how many altogether.
The opposite (or inverse) of addition is subtraction.

2) What is the Sum of 2 Numbers ?
The sum of two numbers is the answer you get when you add them both together.

3) What is the Sum of 2 to 6 ?
2 + 3 + 4 + 5 + 6 = 20

4) What is 15 more than 5 ?
(5 + 15) = 20

5) What needs to be added to change 15 to 24 ?
(24 - 15) = 9

6) A pencil is 20cm long. What is twice its length ?
(20 + 20) = 40cm

7) What is double 15 ?
(15 + 15) = 30

8) What is the Total of 2, 3 and 4 ?
(2 + 3 + 4) = 9

9) Dave has 3 bags of sweets. Tom has 2 bags. There are five sweets in each bag. How many sweets are there Altogether ?
(3 + 2) * 5 = (5 * 5) = 25

10) What is double fourty three ?
(43 + 43) = 86

Doubling

Halving