30
20 and 10
10-3
7
37+5
5=3+2
37+3=40
40+2=42
40-7
40= 10+30
10-7=3
30+3=33
Emma has 16 markers. She gave Jack some. She has seven markers left. How many markers did Emma give Jack?
16-7=9
16= 10 and 6
10-7=3
6+3=9
80
70 and 10
10-4
6
57+6
6=3 and 3
57+3=60
60+3=63
90-5
90= 80 and 10
10-5=5
5+80=85
Mia counted all of the coins in the jar. She counted 48 pennies and 4 dimes. How many coins were in the jar altogether?
48+4= 52
4= 2 and 2
48+2=50
50+2=52
61
51 and 10
10-8
2
8+78
8= 2 and 6
78+2=80
80+6=86
20-9
20=10 and 10
10-9=1
1+10=11
Ronnie uses 5 brown bricks and 8 red bricks to build a fort. How many bricks does Ronnie use in all?
8+5= 13
5= 2 and 3
8+2=10
10+3=13
82
72 and 10
10-5
5
18+4
4= 2 and 2
18+2=20
20+2=22
70-4
70= 60 and 10
10-4=6
6+60=66
Robert has 16 cups. Some are red. Nine are blue. How many cups are red?
16-9=7
16= 10 and 6
10-9=1
1+6=7
36
26 and 10
10-1
9
39+4
4= 3 and 1
39+1=40
40+3=43
63-3
63=10 and 53
10-3=7
7+53=60
Trevor's mom gave him 6 stickers to start his collection. He received 25 more for his birthday. How many stickers does Trevor have now?
25+6=31
6=5+1
25+5=30
30+1=31