Mathematics
Grade 1
15 min
Adding zero
Adding zero
Tutorial Preview
1
Introduction & Learning Objectives
Learning Objectives
Identify zero as the number that means 'nothing' or 'none'.
State the rule that adding zero to a number does not change the number.
Solve addition equations with zero, like 5 + 0 = 5.
Solve addition equations where zero is the first number, like 0 + 9 = 9.
Explain why the answer stays the same when adding zero.
Create a simple story problem that shows adding zero.
If you have 4 toy cars 🚗 and I give you 0 more, how many cars do you have?
Today, we will learn a super special math trick! It is all about the number zero. Adding zero is the easiest addition you will ever do!
Real-World Applications
You have 2 pets 🐶 and get 0 new pets.
You score 5 points in a game, then 0 points in the next turn.
You have 8 crayons 🖍️ and find 0...
2
Key Concepts & Vocabulary
TermDefinitionExample
Zero (0)The number that means 'none' or 'nothing'.An empty cookie jar has 0 cookies. 🍪
Add (+)To put numbers or groups together.3 balls + 2 balls means putting them all together.
SumThe answer you get when you add.In 7 + 0 = 7, the sum is 7.
Equals (=)A sign that means 'is the same as'.5 + 0 = 5 means 'five plus zero is the same as five'.
Number SentenceA math problem written with numbers and signs.8 + 0 = 8 is a number sentence.
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Core Formulas
The Adding Zero Rule
Any Number + 0 = The Same Number
Use this rule when you see a number being added to zero. The number will not change.
The Zero First Rule
0 + Any Number = The Same Number
This shows that even if zero comes first, the other number is still the answer.
4 more steps in this tutorial
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Sign Up Free to ContinueSample Practice Questions
Challenging
Which rule is ALWAYS true when you add zero to any whole number?
A.The answer is always zero
B.The answer is the other number you started with
C.The answer is always one more
D.The answer is always one less
Challenging
Ava says that 20 + 0 is the same as 0 + 20. Is she right?
A.No, because the numbers are in a different order
B.No, because 20 + 0 is 0
C.Yes, because both equal 0
D.Yes, because adding zero doesn't change the number, so both equal 20
Challenging
The answer to an addition problem is 14. One of the numbers added was 0. What was the addition problem?
A.14 + 0 = 14
B.13 + 1 = 14
C.7 + 7 = 14
D.14 + 14 = 28
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