Math Vocab
What is an equation?
You can draw an example on your white board
An equation is a math sentence!
15+5=20
Finish the pattern!
10,12,14,_,_,20
10,12,14,16,18,20
Solve this problem without cubes, sticks, boards, or paper!
9+6
9+6=15
Solve this problem using 10 sticks and one cubes (you can hold them or draw them)
37+11
37+11=48
What is the first thing we ask ourselves after we read a word problem?
WHAT IS THE PROBLEM ASKING ME TO DO?
What is mental math?
Mental Math means doing the math in your head!
Finish the pattern!
15,_,25,_,30,_,40
15,20,25,30,35,40
Solve this problem without cubes, sticks, boards, or paper!
18-5
18-5=13
Solve this problem using 10 sticks and one cubes (you can hold them or draw them)
78+13
78+13=90
Finish the saying correctly!
"When we do math we......"
"Then we always, always, always....."
"When we do math we SHOW OUR WORK"
"Then we always, always, always CHECK OUR WORK"
What does regrouping mean?
regrouping means turning ten ones into one ten!
Finish the pattern!
1,4,7,10,_,_,_
1,4,7,10,13,16,19
Solve this problem without cubes, sticks, boards, or paper!
10+6+2
10+6+2=18
Solve this problem using 10 sticks and one cubes (you can hold them or draw them)
29+39
29+39=68
A strategy for solving subtraction problem is re-arranging the the numbers to make it easier
example: 5-15 instead of 15-5
Why is it true or false?
FALSE
You cannot subtract the smaller number from the bigger number with our level of math
What is an addend?
An addend is the numbers we add together in a math sentence
so in 15+5=20
15 and 5 are the addends!
finish the pattern!
_,90,_,110,_,130
80,90,100,110,120,130
Solve this problem without cubes, sticks, boards, or paper!
9-1-8
9-1-8=0
Solve this problem using 10 sticks and one cubes (you can hold them or draw them)
21+22+23
21+22+23=66
Name the three strategies for solving two digit addition problems
-Drawing 10 sticks and one dots
-Using top down math
What does this symbol mean?
"="
NOT its name, what does it mean?
the equals sign means "the same as"
What is the pattern?
35,26,17,6
HINT- you have to do math to find the pattern!
The pattern is subtract 9 from the number to find the next number!
Solve this problem without cubes, sticks, boards, or paper!
24+15
24+15=39
Solve this problem using 10 sticks and one cubes (you can hold them or draw them)
55+14+12
55+14+12=81
What strategy for adding two digit numbers uses partial sums, one of our vocabulary words?
Top down math!
Partial sums are when you add the ones together, then the tens together. Those are the partial sums to get the full answer to the question.