Numbers and Arrays
Finish the sentences.
Rows go.....
Columns go....
across.
up and down.
What is 4 + 8 + 8?
20.
What are two strategies to add 46 + 33?
Number line
Place Value
Compensation
Hundreds chart
Line them up
What is 14 + 77
91
Model 56 with base 10 blocks.
5 tens 6 ones
True or false.
25 is an ever number?
False.
The digit in my ones place is odd.
If 7 + 6 = 13, 13 - 7 would be what?
6.
What is 24 + 72?
96
What is 25 + 37 + 25?
87
A quadrilateral has how many sides?
4
Which equation has an odd sum less than 15?
7+7=
7+8=
6+5=
9+8=
Find the sum. What double did you use?
7+8=
15
7+7 or 8+8
Which expressions are equal to 62 + 24?
50 + 16
60 + 26
80 + 6
Which equation do you need to regroup to solve?
30 + 29
54 + 38
43 + 44
Is the number 256 even or odd?
Even
Which equation has a sum greater than 14?
6+6=
8+8=
6+7=
You have 16 oranges. You give 7 away. How many oranges do you have left?
16-7=9
You find 57 bugs. Your friend finds 12 more than you. How many bugs do your friend find?
57 + 12 = 69 bugs
You want to complete 40 hours of work this summer. You complete 28 hours during the summer and 13 during the summer. Do you reach your goal?
41 > 40
Yes, you reach your goal.
There are 4 rows of trees. Each row has 5 trees. How many trees are there in all?
5+5+5+5 = 20
Some friends are playing laser tag. 4 of them leave. There are 8 left. How many friends were there to start?
___ - 4 = 8
4 + 8 = 12
So, 12 friends were there to start.
Your friend has 22 bracelets. You have 16 more. How many bracelets do you and your friend have in all?
22 + 16 = 38
22 + 38 = 60
60 bracelets
There are 3 buses. There are 29 students on each of the first 2 buses. There are 88 students in all. How many students are on the third bus?
29 + 29 = 50
___ + 50 = 88
88 - 50 = 38
38 students are on the third bus.