Math 3 - Order of Operations

Use this strategy when determining the order of operations.

PEMDAS

1. Please-The “P” stands for Parentheses (brackets), Always do the operations in inner brackets First!!
2. Excuse- Exponents are next. Do all the square roots or powers.
3. My Dear- Multiply and or Divide from the left to the right.
4. Aunt Sally- Add and Subtract from the left to the right.

What we do is write out the problem in a notebook, then start from the beginning. “P” for parentheses.

For example:
5 x (9-4) +6 =
5 x 5 +6=

So far we have added the numbers in brackets, following order of operations, and our answer has been written underneath the sign of operation in brackets. Now we will Multiply my dear!
5 x 5 + 6=
25+ 6=

Finally Aunt Sally, we will add
25 + 6= 31

Math 2 - Multiplication Poems

Use these poems to help you remember some of your times tables.

4 x 4 Poem
Want to drive a four by four truck?
Unless you're 16, you're out of luck!

6 x 6 Poem
Six times six. Magic tricks.
Abracadabra. Thirty-six.

6 x 7 Poem
Six and Seven are sad and blue.
They make number forty-two.

4 x 7 Poem
Four and seven went fishing with bait.
Four times seven equals twenty-eight.

7 x 5 Poem
Seven and five went for a drive.
Who's in the back seat?
It's thirty-five!

7 x 7 Poem
Seven and seven were doing fine.
They make number forty-nine.

7 x 8 Poem
Seven and eight are nifty chicks.
Eight times seven is fifty-six!

8 x 8 Poem (It's gross, but kids remember it.)
I ate and I ate and I got sick on the floor.
Eight times eight is sixty-four.

9 x 7 Poem
Nine and seven climb a tree!
They find number sixty-three!

9 x 8 Poem
Nine and eight!
What do they do?
They go play with seventy-two!

9 x 9 Poem
Nine and nine having fun!
They play tag with 81.

12 x 7 Poem
Twelve times seven, clean the floor.
Twelve times seven is eighty-four.

Math 2 - Math Facts and Patterns

A good mathematician looks for patterns. In our first few classes we discovered the following math patterns and facts.

1. Any number times 0 equals 0. (Example: 3 x 0 = 0)
2. Any number times 1 equals that number. (Example 15 x 1 = 15)
3. Any number times 10 always ends in 0.
4. Any number times 5 always ends in 5 or 0.
5. Even numbers end in 0, 2, 4, 6, or 8.
6. Odd numbers end in 1, 3, 5, 7, or 9.
7. An even number times an even number always equals an even number.
8. An odd number times an even number always equals an even number.
9. An odd number times an odd number always equals an odd number.

Math Trick - Age

Impress your friends with this math trick. Ask the friend to do steps 1-6 on a calculator or piece of paper. Then ask for their result. With the result, you can tell them their age.

1. Pick a number, any number between 1 and 9
2. Multiply this number by 2
3. Add 5
4. Multiply it by 50
5. If the person has already had a birthday this year add 1758. If they haven't, add 1757.
6. Subtract the 4 digit year that they were born.

RESULT: You should now have a number, the first digit(s) being your original number and the last two the person's age!