Subtraction from 18
What tools and strategies can you use to help you subtract?
number line, hundreds chart, counters, stacking, base ten blocks
What is 10+10?
20
What is 20-10?
10
What tools and strategies can you use to help you add?
number line, counters, base ten blocks, hundreds chart, stacking
Joe has 7 books. His friend gave him 4 more books. How many books does Joe have in total?
11
What is 13- 13?
What is 20+0?
20
What is 33-10?
23
What is 20+20?
40
Laura has 12 lollipops and she gave 10 lollipops to her friends. How many lollipops does she have left?
2
What is 17-7?
10
What is 9+9?
18
What is 47-22?
25
What is 60+30?
90
Jason has 7 toy cars. On his birthday he got 8 more toy cars. How many toy cars does he have all together?
15
What is 11-6?
5
What is 7+8?
15
What is 59-23?
36
What is 37+ 34?
Ella went on a walk carrying 13 flowers. While walking she lost 8 of them. How many flowers does she have left?
5
What is 17-8?
9
What is 8+5?
13
What is 78-48?
30
What is 34+58?
92
David had 23 chocolates. He wanted to give his friend 12 of them but he did not want any so he took none. How many chocolates does David have?
23