Number Sense
Write the number 456 in expanded form.
400 + 50 + 6
Does a square have a line of symmetry? Yes or No? Draw it.
Yes. A square has 4 lines of symmetry (2 diagonal lines and 2 lines through the middle)
34 + 28 = ?
34 + 28 = 62
Count the coins and find the total: 2 dimes, 1 nickel, 3 pennies.
2 dimes = 20 cents
1 nickel = 5 cents
3 pennies = 3 cents
20 + 5 + 3 = 28 cents ($0.28)
Create a tally chart showing the favorite colors of 5 friends: 2 like red, 2 like blue, 1 likes green.
red: ll
blue: ll
green: l
What is the place value of the digit 3 in 537?
The digit 3 is in the tens place and has a value of 30.
Which shape has NO line of symmetry: a rectangle, a scalene triangle, or a circle?
A scalene triangle (all three sides are different lengths)
52 - 17 = ?
52 - 17 = 35
Sarah has 3 quarters and 4 dimes. How much money does she have?
3 quarters = 75 cents
4 dimes = 40 cents
75 + 40 = 115 cents ($1.15)
Name a tool and the unit you would use to measure the length of a pencil.
Compare the numbers 728 and 782 using greater than, less than, or equal to (<, >, =). Explain your reasoning using place value.
728 < 782. Both numbers have 7 hundreds. The first number has 2 tens, and the second number has 8 tens. Since 8 tens is greater than 2 tens, 782 is greater than 728.
Draw a rectangle and show all of its lines of symmetry. How many does it have?
A rectangle has 2 lines of symmetry — one horizontal line through the middle and one vertical line through the middle.
Solve this two-step problem: Marcus has 45 stickers. His friend gives him 28 more stickers. Then he gives 19 stickers to his sister. How many stickers does Marcus have left?
45 + 28 = 73
73 - 19 = 54
Marcus has 54 stickers left.
Show two different ways to make $0.75 using quarters, dimes, nickels, and pennies.
3 quarters, 7 dimes and 1 nickel, 6 dimes and 3 nickels, etc.
Create a pictograph showing the following data: 10 dogs, 8 cats, 6 birds. Use a key where each symbol = 2 animals.
Dog: ☺☺☺☺☺
Cat: ☺☺☺☺
Bird: ☺☺☺
Key: ☺ = 2 animals
Solve: A store received 145 toy cars on Monday, 263 toy cars on Tuesday, and 189 toy cars on Wednesday. About how many toy cars did the store receive in total? (Round each number to the nearest 100 to estimate.)
About 600 toy cars.
145 rounds to 100.
263 rounds to 300.
189 rounds to 200.
100 + 300 + 200 = 600
This shape has exactly 2 lines of symmetry. Which of these could it be: a star, a diamond (rhombus), or a heart?
A diamond (rhombus): one vertical and one horizontal
Solve: There are 54 crayons in one box and 37 crayons in another box. If you combine them, how many crayons do you have altogether? Show your work.
54 + 37 = 91 crayons
A pencil costs 35¢. A notebook costs 68¢. You have $1.50. How much money will you have left after buying both items?
35¢ + 68¢ = 103¢
150¢ - 103¢ = 47¢ ($0.47)
A pitcher holds 8 cups of water. You fill 3 cups with juice. How many more cups can you add to the pitcher?
8 - 3 = 5
5 more cups can be added
Order these numbers from least to greatest: 456, 389, 521, 398, 450
389, 398, 450, 456, 521
A triangle has 3 sides and 3 corners. A pentagon has 5 sides and 5 corners. A hexagon has 6 sides and 6 corners. How many sides and corners does an octagon have?
An octagon has 8 sides and 8 corners.
Solve: A bakery had 85 cookies. They sold 28 cookies in the morning and 19 cookies in the afternoon. How many cookies does the bakery have left?
28 + 19 = 47 cookies sold
85 cookies - 47 cookies sold = 38 cookies left
You want to buy a toy that costs $1.25. You have 4 quarters, 5 dimes, and 8 pennies. Do you have enough money? How much money will you have left over (or how much more do you need)?
Yes, you have enough money with 33 cents leftover.
4 quarters = 100 cents ($1.00)
5 dimes = 50 cents ($0.50)
8 pennies = 8 cents ($0.08)
$1.00 + $0.50 + $0.08 = $1.58 (158 cents)
158 cents - 125 cents = 33 cents ($0.33)
School starts at 8:15 AM. Lunch is 3 hours and 20 minutes later. What time does lunch start?
8:15 + 3:20 = 11:35 am