Addition (+) means finding the total, or sum, by combining two or more numbers.
Exampel: If you have 2 apples and your friend has 3 apples, togehter you have 5 apples which can be writen like this:
2 + 3 = 5
Substraction (-) is taking a number away from another.
Exampel: If you have 5 apples and your friend takes 3 apples, you have 2 apples left which can be writen like this:
5 - 3 = 2
The basic idea of multiplication (x) is repeated addition.
Exampel: If you add 5 apples to a bag 3 times, you will have 15 apples in the bag. This can be written using addition:
5 + 5 + 5 = 15
or using multiplication:
5 x 3 = 15.
Division (/ or รท ) is splitting into equal parts or groups.
Exampel: There are 12 apples, and 3 friends want to share them. How many apples should they get each? Answer: They should get 4. This could be written:
12 / 3 = 4
A) If you have 10 coins and I give you 5 coins. How many coins do you now have?
B) You and your two frineds want to split the 21 dollar gas bill after a road trip. How much should each of you pay?
C) You use your 20 dollar bill to buy two footballs for 5 dollar each. How much money should you get back in change?
D) You give 6 candies each to your 5 sisters. How many pices of candy did you give them in total?
A) You now have 15 coins. 10 + 5 = 15
B) Everyone should pay 7 dollars. 21/3 = 7
C) You should get back 10 dollars. 20 - 5 - 5 = 10
D) In total you gave them 30 candies. 6 x 5 = 30
You enconter math everyday in your daily life. Try to use every opportunity given to grow as a mathemtician and problem solver.