Addition
____ + _____ =10
Answers Vary.
5+5=10
10+0=10
4+6=10
____-____=6
7-1=6
10-4=6
7+8=10+_____
5
Write an equation to match this problem. The teacher had 16 pencils and 9 markers in a box. How many more pencils than markers are in the bag?
16-9=7
Do all double facts have even sums? If yes give two examples.
Answers Vary.
2+2
4+4
6+6
____ + ____ = 15
Answers Vary.
10+5=15
8+7=15
1+14=15
24-16=_____
8
16+3=11+___
8
Yana collects marbles. She had 34 marbles. For her birthday, Yana received 17more marbles. How many marbles does Yana have now?
34+17=51 Marbles
18-9 is a half fact. Write two other half facts.
12-6
16-8
4-2
____+____=25
Answers Vary.
1+24=25
10+15=25
_____=30-17
13
9+8=6+____
11
Isaiah loves to read. Yesterday he read 54 pages and today he read 23 pages. How many pages did Isaiah read altogether?
54+23=77 pages
6+7 is a double fact plus one. Do you agree? Explain
6+6=12 is a double fact.
12+1=13
_____= 25+46
71
_____=99-53
46
16+19=21+_____
14
Natalie played a game where she has to collect coins. The first time she played she got 67 coins the second time she played she got 52 coins. How many more coins did she get the first time than the second time?
67-52=15 more coins the first time.
Use a make 10 strategy to solve the equation 18+14=____
18+2=20
20+12=32
_____=63+38
101
107-39=_____
68
13+33=_____+27
19
Takoda drew a line that was 83 centimeters long. He wanted his line to be longer so he added more to it. When he was finished his line was 102 centimeters long. How many centimeters did Takoda add to his line?
102-83=19 cm.
Takoda added 19 centimeters to his line.
*This is a two part question.
The number rack shows 6 beads on top and 7 beads on the bottom. Write an equation that could represent the beads.
Jordan says that he can use 6+6 to figure out how many beads are on the left side. How can he do that?
6+7=13
6+6=12
12+1=13