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Look at what we’ve learned in math Counting Patterns aabaabaabaab Adding 6+2=8 Subtracting 8-2=6
How are numbers related? A lot of things are related and depend on each other –C–Colors (color wheel) – animals –P–People in families
Numbers can be grouped into families, too!!
Families have members There are three members to a fact family The members must all work together
Will any three numbers work? Try it!!! –2–2+2=4 –8–8-6=1 –3–3+2=7 –1–10-4=6
Families live somewhere Fact family numbers live in their problems All numbers need to be involved
You will make your own family
You will make the house they live in
We will then put our fact families and houses together to show off what we have been learning!!! Together we will make a presentation for our families.
Matt’s Fact Family These numbers are a family.
Erin’s Fact Family These numbers are a family.
We are family Whose in your fact family?
MENTAL MATH Adding Facts to = = =
Addition Math Facts = 9. Addition Math Facts = 1 5.
© 2007 M. Tallman. 130, ,000 = 70,000 The following pattern of subtraction is related to a basic math fact: = =
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6 x 99 Think: round off 99 to 100 So… 6 x 99 becomes 6 x 100 = 600 Then subtract: 600 – 6 = x 79 4 x 80 = 320 – 4 = 316.
Subtraction Strategies. draw a picture = Step 1, draw 85. Step 2, mark off 12. Step 3, what is left? = 73.
Families in Mathematics. Whose in Your Family? Think about your family and the number of people which live in your house. How many people are in your.
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Finding the Mean David R. David N.. Mean The average of the numbers in a set of data is the mean.
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Counting up to Subtract Addition and Subtraction are related! They are called inverse operations. Think back to your fact families = = 4.
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Division Patterns 32 ÷ 8 = ÷ 8 = 40 3,200 ÷ 8 = ,000 ÷ 8 = 4, ,000 ÷ 8 = 40,000.
Module 1 Lesson 9 Find related multiplication facts by adding and subtracting equal groups in array models.
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Make sure yours is correct BEFORE you glue!!. any of the numbers that are added together a step by step solution to a problem the answer to a subtraction.
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9 x9 81 4/12/2015 Know Your Facts!. 9 x2 18 4/12/2015 Know Your Facts!
1 x0 0 4/15/2015 Know Your Facts!. 9 x1 9 4/15/2015 Know Your Facts!
1 x0 0 4/16/2015 Know Your Facts!. 1 x8 8 4/16/2015 Know Your Facts!
3 x0 0 7/18/2015 Know Your Facts!. 4 x3 12 7/18/2015 Know Your Facts!
4 x1 4 10/18/2015 Know Your Facts!. 5 x /18/2015 Know Your Facts!
3 x0 0 10/18/2015 Know Your Facts!. 11 x /18/2015 Know Your Facts!
Multiplication Facts. 9 6 x 4 = 24 5 x 9 = 45 9 x 6 = 54.
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