In the last lesson, you learned a little about multiplication.
Multiplication is repeated addition.
You learned that...
3 × 2
...is the same as saying...
Add 3 to itself 2 times = 3 + 3 = 6
...or...
Add 2 to itself, 3 times = 2 + 2 + 2 = 6
In this lesson, let's see how you can use addition to learn multiplication.
You can use addition to multiply any two numbers!
Let's try it.
Example 1
6 × 4 = ?
This equation means...
Add 6 to itself, 4 times
...or...
Add 4 to itself, 6 times
So, let's add.
Hint: You can do whichever addition you feel is easier.
6 × 4 =
Add 4 to itself, 6 times =
4 + 4 + 4 + 4 + 4 + 4 =
24
Tip: Use skip counting to help you find the sum.
So,
6 × 4 = 24
Great job!
We used addition to figure out a multiplication problem.
Let's try another one.
Example 2
10 × 3 = ?
Can you use addition to solve this one?
10 × 3 =
10 + 10 + 10 =
30
So,
10 × 3 = 30
Awesome!
Skip counting is adding a number over and over again.
This is skip counting by 2's:
This is skip counting by 5's:
This is skip counting by 10's:
You can use skip counting to answer any multiplication problem too.
Let's try it.
9 × 2 = ?
To find the answer, we can either...
Count by 9's, 2 times
...or...
Count by 2's, 9 times
Let's try counting by 2's:
2, 4, 6, 8, 10, 12, 14, 16, 18
(9 times)
So,
9 × 2 = 18
Nice work. 👏
Let's try one more.
7 × 5 = ?
Let's try counting by 5's, seven times.
5, 10, 15, 20, 25, 30, 35
(7 times)
So,
7 × 5 = 35
Perfect!
Great job on the lesson. 👏
You just learned how you can use addition or skip counting to figure out the answer to any multiplication question on your own. 💪
Now, complete the practice to help you master the skill.