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## 3rd grade

### Course: 3rd grade > Unit 8

Lesson 4: Patterns in arithmetic- Finding patterns in numbers
- Recognizing number patterns
- Math patterns
- Intro to even and odd numbers
- Patterns with multiplying even and odd numbers
- Patterns with even and odd
- Patterns in hundreds chart
- Patterns in hundreds chart
- Patterns in multiplication tables
- Patterns in multiplication tables
- Arithmetic patterns and problem solving: FAQ

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# Arithmetic patterns and problem solving: FAQ

Frequently asked questions about arithmetic patterns and problem solving.

## What's the difference between a one-step and two-step word problem?

In a one-step word problem, we only need to perform one operation (like addition, subtraction, multiplication, or division) to find the answer. In a two-step word problem, we need to perform two operations

## What is a 2-step expression?

A 2-step expression is a math problem that requires two steps to solve. For example, 3, x, plus, 2, x is a 2-step expression. To solve it, we first add 3, x and 2, x together to get 5, x, and then we can solve for x.

## How do we use estimation in word problems?

In word problems, we can use estimation to help us check our work. For example, if we're trying to find out how many apples there are in 11 bags, each with 6 apples, we can estimate that there are about 60 apples. If we calculate the exact answer and get 15, we know we've made a mistake.

## What are patterns in arithmetic?

Patterns in arithmetic are sequences of numbers that follow a certain rule. For example, the sequence 2, comma, 4, comma, 6, comma, 8, comma, 10 is a pattern in arithmetic because we're adding 2 to each number to get the next one.

## How do we use the topics from this lesson in the real world?

There are many ways we use arithmetic and problem solving in the real world! For example, we might use estimation to plan a budget, or we might use two-step word problems to figure out how much we need to save to buy something we want.

## Want to join the conversation?

- What is a two stepped problem?(5 votes)
- I'm not good at estimation because i like doing the real answer(8 votes)
- why are the qusetions so hard but yet im in 5 and this is 3(7 votes)
- If it helps, I'm in 7 and I do 3.(1 vote)

- This is litteraly so easy(7 votes)
- When we multiply by any number times an even number what do we get?(5 votes)
- Whats 900000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000+80000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000(4 votes)