Free Math Help

Free Math Help Free Math Help 1. Adding Doing an addition is adding a number to another number. For instance : 1+1=2 1+4=5 7+2=9 When you add 1 to the number 1 you get 2, when you add 4 to the number 1 you get 5, when you add 2 to the number 7 you get 9.

2. Subtracting Doing a subtraction is taking away a number from another number. For instance :

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5-1=4 7-2=5 9-4=5 When you take away 1 from the number 5 you get 4, when you take away 2 from the number 7 you get 5, when you take away 4 from the number 9 you get 5.

3. Multiplication Doing a multiplication is adding a number several times. For instance : 2×3=6 4 × 4 = 16 3 × 5 = 15 When you calculate 2 times 3 you calculate 3 + 3 (you add 3 twice), when you calculate 4 times 4 you calculate 4 + 4 + 4 + 4 (you add 4 four times), when you calculate 3 times 5, you calculate 5 + 5 + 5 (you add 5 three times).

4. The square A square is a figure with 4 edges of the same length and 4 right angles like this: 5. Sequences of numbers A sequence of numbers is a list of numbers that follow each other with a certain logic.

For example : In the sequence 0 - 2 - 4 - 6 - 8 - ... you add 2 at each step.

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In the sequence 1 - 3 - 9 - 27 - 81 - ... you multiply by 3 at each step.

In the sequence 5 - 9 - 17 - 33 - ... you multiply by 2 and you subtract 1 at each step.

It is up to you to find out the logic of the sequence to discover the next numbers!

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