Number Collection Boxes
Find the Sum/Missing Numbers
Facts
Combinations of 10
Miscellaneous
100
What are 5 names for 12?
6+6
3+3+3+3
10+2
12 tally marks
Twelve
4+4+4
8+4
15-3
20-8
16-4
5+5+2
100
What are the missing numbers?
65, ____, 85, 95, 105, ____, 125
75, 115
100
Name two turn around facts for this domino and their sum.
4+ 5 = 9
5 + 4 = 9
100
Is 5 + 5 a combination of 10, a doubles fact, or both?
BOTH! 5 + 5 = 10
100
Is the number 9 even or odd? How do you know?
Odd. If you draw pairs, there is an odd one out.
200
Collect 10 names for 18.
9+9
10+8
6+6+6
12+6
4+4+4+4+2
10+5+3
10+4+4
18 tally marks
18 pictures
D N P P P
200
What are the missing numbers?
____, 10, ____, 20, 25, ____, 35
5, 15, 30
200
What is the turn around fact for 7+6? What does it equal?
6+7= 13
200
List 5 combinations of 10.
2 + 8
5 + 5
6 + 4
1 + 9
0 + 10
3 + 7
4 + 6
7 + 3
8 + 2
9 + 1
10 + 0
200
Stella had 8 bananas when she went to the zoo. When she passed by the monkey exhibit, an orangutan stole 5 of Stella's bananas! How many does Stella have left? What number model did you use?
8-5= 3 bananas (only right with the UNIT!)
300
Come up with 10 names for 15.
N N N
10+5
7+8
15 tally marks
fifteen
5+5+5
10+3+2
20-5
18-3
12+3
16-1
15+0
15 pictures
300
What is the sum of these coins?
P P D D D N Q Q
1+1+10+10+10+5+25+25 = 86 cents
300
What is the turn around fact for 12 + 18?
18 + 12
300
How many combinations of 10 are there in all?
There are 11 combinations of 10!
300
Is the number 201 even or odd? How do you know?
1 is in the ones place, which is odd. This means the whole number is odd.
400
Find 10 names of 22
20+2
10+12
10+10+2
4+4+4+4+4+2
20+1+1
22+0
11+11
5+5+5+5+2
22 tally marks
twenty two
22 pictures
18+4
400
Find the sum of these coins.
N D D D N N Q P P P N D D
5+10+10+10+5+5+25+1+1+1+5+10+10 = 98 cents
400
Name 10 doubles facts.
1+1
2+2
3+3
4+4
5+5
6+6
7+7
8+8
9+9
10+10
400
8 + ____ = 10
____ + 1 = 10
____ + 3 = 10
2
9
7
400
Name two helper facts that can help you solve 6+4.
4+4=8, 8+2=10
6+6=12, 12-2=10
500
What are 10 names for 27?
20+7
Twenty seven
27 tally marks
27 circles/hearts/etc.
15+12
10+10+7
5+5+5+5+7
20+3+4
20+5+2
13+14
30-3
25+2
24+3
500
Marcos had 7 toy cars. Selina had 13 toy cars. How many more cars did Selina have? What number model can you use?
13-7=6
Selina had 6 more toy cars than Marcos.
500
What helper facts can I use to figure out 9+7?
9+9=18 and 18-2=16 because 9 is 2 more than 7.
7+7=14 and 14+2= 16 because 7 is 2 less than 9.
500
Jason is playing fishing for 10 with Nancy. If Jason has a 4 card, what number should he ask Nancy for?
He should ask if Nancy has a 6 because 4 + 6 = 10
500
DOUBLE POINTS
Michael has five quarters. He wants to buy an ice cream cone for 85 cents. Does Michael have enough money? How much does he have left over?
DOUBLE POINTS
5 Quarters=25+25+25+25+25=125 cents=$1.25
Yes he has enough. 125-85=40 cents left over