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The question asks to "Select all the expressions that are equal to 30."

Let’s solve each expression:

1. \( 180 \div 6 = 30 \)
2. \( 1,800 \div 3 = 600 \)
3. \( 210 \div 7 = 30 \)
4. \( 120 \div 4 = 30 \)
5. \( 240 \div 4 = 60 \)

The correct expressions that equal 30 are:
- \( 180 \div 6 \)
- \( 210 \div 7 \)
- \( 120 \div 4 \)

Would you like more details on any of these calculations or related questions?

Here are five related questions:
1. How would you check your division results using multiplication?
2. Can you create other division problems that result in 30?
3. What is the relationship between multiplication and division?
4. How can you estimate the result of a division problem before calculating?
5. Why does \( 1,800 \div 3 \) give a much larger result compared to the others?

**Tip:** When dividing, think of the result as distributing the number equally into groups. The divisor tells you the size or number of those groups.

Select all the expressions that are equal to 30. 180 ÷ 6, 1,800 ÷ 3, 210 ÷ 7, 120 ÷ 4, 240 ÷ 4

Learn how to select expressions equal to 30 from a set of division problems. This example involves basic arithmetic and division concepts suitable for Grades 4-5.

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