Addition
5+10=
15
12-6=
6
5+__=10
5
There are 10 seats on the bus. Some people got on. Now there are 5 empty seats. How many people got on?
Write a number sentence.
5+5=10
or
10-5=5
Which subtraction sentence matches this addition sentence?
4+3=7
7-3=4
or
7-4=3
10+30=
50
20-10=
10
__+10=16
6
There are 15 seats on the bus. Some people got on. Now there are 10 empty seats. How many people got on?
Write a number sentence.
15-10=5
or
10+5=15
Which subtraction sentence matches this addition sentence?
5+6=11
11-5=6
or
11-6=5
43+10=
53
25-20=
5
8+__=18
10
I have 20 toys. Some got lost. Now I have 9 toys. How many toys got lost?
Write a number sentence.
20-9=11
or
9+11=20
Which addition sentence matches this subtraction sentence?
12-7=5
7+5=12
or
5+7=12
54
50-20=
30
__+4=24
20
I have 18 toys. Some got lost. Now I have 12 toys. How many toys got lost?
Write a number sentence.
18-12=6
or
12+6=18
Which addition sentence matches this subtraction sentence?
20-8=12
8+12=20
or
12+8=20
26+30=
56
45-30=
15
5+__=35
30
I have 25 pencils. Some pencils broke. Now I have 6 pencils. How many pencils broke?
Write a number sentence.
25-6=19
or
19+6=25
Write the fact families for these numbers:
15, 7, 8
7+8=15
8+7=15
15-8=7
15-7=8