backe math

Today I'm going to show you some backe math.

If a crate of apples contains as many apples as 16 tubs, and 4 tubs contains as many apples as 9 bags, then 3 crates contain as many apples as bags?

the answer is 108 bags. The answer 108 because if 9 bags can equal 4 tubs, multiplie 9 by 4 to equal 36 bags in 1 crate. Then multiplie 36 by 3 because their is 3 crates. That equals 108!!!!!!!

constants and numerical coefficients

Constants are numbers that do not change or decreases the value of an expression
eg. 2x x=3 The number does not change or decrease the value of the variable.

A Numerical Coefficient is a number that multiplies the variable
eg. 5y 5 multiplies the y [unkown number] by 5

Questions that equal 9

There are 36 cookies that need to be shared equally with 4 people.

How many cookies will each person get? Each person will get 9 cookies because 36 cut into 4 is 9+9=18 9+9=18 18+18= 36


My car is how many feet away from the yellow line when the parking spot is 23 feet, and the car

is 14 feet long. How much feet away from the yellow line is the car? The answer is 9, but how did

I get it? 14+x=23 14+x-14=23-14 x=9 14+x=23 14+9=23 23=23

pi

This is how much I know

3.1415926545389

variables and expressions

A variable is a letter that represents an unknown number.

An example would be any letter like x, a, v, y, o, etc.

An expression is any single number or varible, or combination of operations involing numbers and variables. Some examples would be 3, x. 4y, +, -, ÷

Rules for 1, 2, 3, 4, 5

The rules for 1, 2, 3, 4, and 5

1. Any whole number is divisible by 1

2. Any whole even number

3. Any number that, when you add the sum of digits equals a multiple of 3

4. Any number, that when divided by 2 twice, equals a whole number

5. An number that ends in a 0, or a 5

rules for 6, 8, 9, 10.

The rules for 6, 8, 9, 10 are.....

6. Any whole number divisible by 2, and 3.

8. Any whole number divided by 2 three times.

9. Any whole number, which when you ad the sum of numbers, makes a multiple of 9.

10. Any whole number with a 0 at the end.

Textbook number 5

Write each addition statement shown by the fraction strips. Estimate the answer, and then add.

a. 1/3 + 1/3 = 2/3

b. 2/6 + 1/6 = 3/6 = 1/2

c. 2/4 + 1/4 = 3/4

textbook

2. Min had a mark of 26 out of 31 on a science test. That same day, his sister got a mark of 45 out of 52 on a math test. Explain how to find out who got the better mark.

Min: 26 ÷ 31 = 0.83 = 83%
Sister: 45 ÷ 52 = 0.86 = 86%
Min's got 26 out of 31, so you do 26 ÷ 31.
Min's sister got 45 out of 52, so you do 45 ÷ 52
Min's sister got a higher mark!

Order of Operations

Today I'm going to tell you how to do this question.