Place Value
Build and solve with place value cubes.
53 - 32 = ?
53 - 32 = 21
Write a subtraction equation to find the difference.
Ms. Gedrich has 15 tootsie rolls. She eats 7 of them. How many tootsie rolls are left?
15 - 7 = 8
Decompose the number 15 to solve.
25 - 15 = ?
25 - 15 = 10
Adjust 35 - 25 to subtract.
35 - 25 =
Use your number line to subtract 46 - 16 =
Start at 46
Subtract or hop back 16
Land on 30
49 - 25 = ?
49 - 25 = 24
Ms. Gedrich has 34 cats, 15 dogs, and SOME chickens. All together she has 58 animals. How many chickens does Ms. Gedrich have?
Ms. Gedrich has 9 chickens.
Decompose the number 27 to solve.
45 - 27 = ?
45 - 27 = 18
Adjust 67 - 45 to subtract.
67 - 45 =
Subtract 97 - 20 using any strategy you want
97 - 20 = 77
97 - 78 = ?
97 - 78 = 19
Write a fact family for 34 + 15 = 49
34 + 15 = 49
15 + 34 = 49
49 - 34 = 15
49 - 15 = 34
Decompose the number 18 to solve.
42 - 18 = ?
43 - 18 = 25
Adjust 63 - 48 to subtract.
63 - 48 =
Use Part-Part Whole to solve
Tom Brady eats 15 berries.
He eats 8 blueberries.
The rest are strawberries.
How many strawberries did Tom Brady eat?
Whole Amount = 15
Part = 8
Part = 7
blueberries + strawberries = all the berries
OR
All the berries - 8 blueberries = strawberries
Use place value cubes or draw place value cubes to solve!
62 - 27 = ?
62 - 27 = 35
What related addition fact can you use for this problem 73 - 35 = ?
(think of a fact family!)
73 - 35 = 38
Fact Family:
38 + 35 = 73
35 + 38 = 73
73 - 35 = 38
73 - 38 = 35
How can you decompose the number 7 that when you subtract it from 13 it equals ten?
13 - 7 = ?
13 - 7 = ?
Adjust 88 - 47 to subtract
88 - 47 =
Use the number line. Start on 46. Hop 23 more spaces to get your total amount.
The Cat in the Hat was putting some snacks away.
He put away 23 snacks.
There are still 46 snacks left to put away.
How many snacks were there in all?
69 - 23 = 46
85 - 47 = ?
85 - 47 = 38
There are 63 students eating lunch.
There are 16 FEWER/LESS students at recess than lunch.
How many students are at recess?
63 - 16 = 47
There are 47 students at recess.
How can you decompose the number 8 that when you subtract the numbers from 14 it makes a 10?
14 - 8 = ?
14 - 8 = 6
Write all ways to adjust 83 - 58
83 - 58 =
How would you solve 72 - 33 = ?
72 - 33 = 39