Number Lines
What does a number line look like for the multiplication problem 2×3?
2 jumps of 3 spaces
or
3 jumps of 2 spaces
What is an array? Give an example using 2 rows and 3 columns.
000
000
What is a square unit?
It is a measurement to help find the area of a shape.
What is the area of a rectangle that is 3 units wide and 4 units long?
3x4=12
What are the first five numbers you get when you skip count by 10 starting from 0
10, 20, 30, 40, 50
If you jump 4 spaces on the number line starting at 0, what number do you land on?
4
How many total squares are in an array with 4 rows and 5 columns?
20
How many square units are in a square that is 2 units on each side?
2x2=4
If the area of a rectangle is 20 square units and the length is 5, what is the width?
20x5=100
If you start at 3, what is the 5th number in the skip counting sequence by 3s?
15
Show how to represent 5×3 using a number line.
5 jumps of 3 spaces
or
3 jumps of 5 spaces
Create an array for the multiplication problem 3×4.
0000
0000
0000
Calculate the area in square units of a rectangle that is 3 units by 5 units.
3x5=15
Draw a rectangle that represents 6×4 and label its area.
6x4= 24
draw the rectangle
Count by 10s from 20 to 100. What numbers do you say?
30, 40, 50, 60, 70, 80, 90
How many jumps of 6 will it take to reach 30 on a number line?
5
Identify the multiplication sentence represented by this array:
000
000
000
3x3=9
If a square has the length of 2 square units and the width of 3 square units, what is the area?
2x3=6 square units.
How can you find the area of a square with side length 5 units?
A square has the same length on all sides.
5x5=25
What is the sum of the first five numbers you say when skip counting by 2?
2+4+6+8+10= 30
Explain how a number line can help you solve 7×2.
You can skip 7 spaces TWICE to find the result = 14.
How can you use an array to show 6×2?
000000
000000
How would you explain the concept of square units to a friend?
The measurement used to find the area.
Why is area important in real-life situations? Give an example.
x
If you skip count by 5s, what number will you land on after 10 jumps starting from 0?
50