Number Sense
What is ten more than 20?
30
What is the formula for an addition sentence
Part + Part = Whole
When you subtract you try and find the........
Difference!
cubes- 1
rods-10
flats-100
cubes-1000
What numbers are even?
3,8,12,13,14,16,17,18
8,12,14,16,18
When you are adding, you are trying to find the......
Sum!
Solve:
20-4=
16
Where is the ones place located?
All the way to the right
Skip count by 3's starting from 36-60
36,39,42,45,48,51,54,57,60
Solve the doubles fact
12+12=
24
What are some ways that you can describe subtraction?
Take away, minus, fewer than, decreased by, less than
What are the names of the 3 types of forms to write and say numbers in?
Standard, expanded and word form
True or False
1,330 < 1,033
False.
3 in the hundred's place is larger than zero.
Solve:
147+22
169
Solve:
178-40=
138
Write the number 1,632 in expanded form
1,000+600+30+2
True or False
Zero matters
Zero does matter. It represents the digit in each number and tells that the value is zero.
Solve:
1,230+65
1,295
Solve:
1,898-32
1,866
In the number 10,678 what is the value of the digit 7?