Counting & Place Value
Count forward by ones starting at 17. What are the next five numbers?
18, 19, 20, 21, 22
Find the sum: 3 + 4.
7
Rewrite this subtraction as a missing addend:
10 - 4 = ___ (write as ___ + 4 = 10).
4
6 + 4 = 10
Sarah has 3 apples and gets 2 more. How many apples does she have now?
3 + 2 = 5
5 apples
Draw tally marks for 4 cats.
(Show the tally representation.)
IIII
What number comes one more than 29?
What number comes one less than 29?
One less: 28
Fill in the blank:
5 + ___ = 10.
5
5 + 5 = 10
Determine the unknown:
___ + 6 = 11.
5
11 - 6 = 5
Ben had 10 stickers, he gave 3 to his friend. How many stickers left?
10 - 3 = 7
7 stickers left
If a pictograph shows 3 apples and 2 bananas, how many pieces of fruit total?
3 + 2 = 5
5 pieces
Show two ways to make 14 using tens and ones (write both ways).
14 = 1 ten + 4 ones
14 = 0 tens + 14 ones
14 = 10 + 4
or show with manipulatives
Recall: What is 7 + 3?
Also tell the related subtraction fact.
10
10 - 3 = 7 or 10 - 3 = 3=7
True or false? 7 + 2=10. Explain your thinking.
False
7 + 2 = 9
Mia counted 8 blue blocks and 6 red blocks. How many blocks in all?
8 + 6 = 14
14 blocks
Look at this tally set: |||| ||| .
How many do you see? (Student counts)
4 + 3 = 7
Start at 46 and count backwards by ones for five numbers. What are they?
45, 44, 43, 42, 41
Solve quickly: 8 + 5.
13
Find the missing number:
4 + ___ = 9.
5
9 - 4 = 5
Tommy had ___ cookies (student fills), he ate 4 and now has 5. What was the starting number? (Write an equation.)
___ - 4 = 5
___ = 9, because 5 + 4 = 9
Create a small pictograph:
Students were asked what they like more — 3 like pizza, 2 like pasta, 4 like salad. Which is most liked?
Most liked Salad
(answers will vary for pictograph)
Pizza:
Pasta:
Salad:
Which is greater: 57 or 75? Explain how you know.
75 is greater because it has 7 tens vs. 5 tens
Mental math challenge:
What is 9 + 6?
15
A subtraction problem: 12 − 5.
Also rewrite it as a missing addend equation.
7
5 + __ = 12
Lily sees 7 birds, then 8 more fly by. She gives 5 seeds to the birds. How many birds are there total?
7 + 8 = 15
15 birds total
Given two categories, Cats: |||| (4), Dogs: ||||| (5). Which has more and by how many?
Dogs