2.02 Counting on
Lesson
Are you ready?
Do you remember how to count forward by $10$10?
What is $20+10$20+10?
Learn
Let's see how we can count on by $1$1, and then $2$2. What patterns do we make?
Apply
Question 1
Write the next number in the pattern:
$1$1, $3$3, $5$5, $7$7, $9$9, $11$11, $\editable{}$
Learn
What patterns do you see if we count by $5$5, or $10$10?
Apply
Question 2
Write the next number in the pattern:
$4$4, $9$9, $14$14, $19$19, $24$24, $29$29, $\editable{}$
Remember!
When we count on, we can use the pattern to help us work out the next number.