Addition combines numbers together to make a larger number. We can add a one-digit number to a two-digit number by using place value and counting forward.
Always begin with the larger number and count forward. This makes addition quicker and easier.
We can use base-ten models to show addition. A “flat” stands for 100, a “stick” or “long” stands for 10, and a “cube” stands for 1. Adding means combining these models together.
Count the tens first, then add the ones. Using base-ten blocks helps us see the numbers clearly.
When adding, we can count forward from the larger number instead of starting at one. This saves time and helps us solve problems faster.
Touch each number as you count forward to keep track. Counting forward is faster than starting from 1.
We can use addition to solve real-life problems. Read the problem carefully, think about what is being added, and then use counting forward or base-ten models to find the answer.
Underline the numbers in the problem and decide what to add. Always check your answer by counting forward again.