Missing Addend Word Problems

The video tutorial explains how mathematical sentences are formed using numbers and symbols, focusing on number sentences and equations. It describes how equations represent equality between two sides and how they can be used to solve word problems by identifying keywords and arranging numbers and symbols correctly. The tutorial provides examples to illustrate the process of writing and solving equations, emphasizing the importance of recognizing keywords for addition.

What does the addition symbol represent in a number sentence?

• Addition

• Multiplication

• Subtraction

• Division

In an equation, what does the equals symbol signify?

• That both sides are different

• That the left side is greater

• That both sides are equal

• That the right side is greater

What can be used to represent an unknown number in an equation?

• A word

• A symbol

• A number

• A letter

Which keyword in a word problem suggests the use of addition?

• Quotient

• Altogether

• Difference

• Product

When writing an equation from a word problem, what should you look for?

• The first number mentioned

• The most complex words

• Keywords indicating operations

• The longest sentence