Place Value
Round to the nearest 10, then round to the nearest 100.
268
Nearest 100: 300
25, 30, 35, ____, 45, 50
40
What does perimeter measure?
The space around a shape.
161 - 59
102
Use any strategy to solve
4 x 6
24
Ryan has stacks of books. He has 4 stacks, with 5 books in each stack. How many books does Ryan have?
20 books
True or False
732 can also be compose as 600+130+2
True!
Can you think of any other ways to decompose/compose 732?
A pattern starts with the number 3 and follows the rule "add 2, then add 4." What are the next three numbers?
The next three number are 17, 21, 23
If a square has one side that is a width of 5 cm, what is the perimeter of the square?
P=20cm
312+185
497
Use any strategy to solve
7x8
56
A school is trying to figure out how many 3rd Grade book clubs they need. They have 72 students and want to have 9 students in each book club. How many different book clubs do they need?
8 book clubs
Select one Number Form to represent the number 562.
(This could be expanded form, word form, base ten pieces.)
Expanded Form: 500 + 60 + 2
Word Form: Five hundred sixty two
Time for a joke....
What did the calculator say to the student?
You can always count on me!
If a rectangle has a width of 2in and a length of 5in, what is the perimeter of the rectangle?
P = 14in
546 - 355 = _______
191
Use any strategy to solve
48 / 6=
8
There are 11 more adults than children at a School dance. There are 54 adults at the School dance. How many children are at the School dance?
43 Children
Compare these two numbers using >, <, or =
432 ____ 422
>
3+3= 9
so
30 +30 =
300 + 300=
90 and 900
A triangle has three sides that measure 3in, 3in, and 5in. What is the perimeter of the triangle?
P= 11in
503 - 212=?
291
Use any strategy to solve
56 / 7=
8
A teacher started the school year with 123 pencils. At the end of Quarter 2, she had given away 43 pencils to students. When the class came back after Winter Break she brought back 65 more pencils. How many pencils does the class have now?
145
What is the place AND the value is the 7 in 1,271
Place: tens place
Value: 70
so
90 - 30=
9,000 - 3,000=
30 and 3,000
What is a real world example of when you would need to use perimeter?
Answer may vary.
Example: fencing, race track
489 + 123=
612
Use any strategy to solve
12/ 4=
3
Brody and his friends had some blueberries. They ate 39 blueberries. They have 21 blueberries left. How many blueberries did Brody and his friends have at first?
60 blueberries