To solve word problems with equations and inequalities, you pull the math out of the words — using fact families, missing-number thinking, and phrases like "at least" and "more than." Warm up all of these and the word problems become a plan.
These are words you'll need to already know to follow this lesson — not the new words the lesson teaches. Review each one, its meaning, and the example so the new lesson makes sense from the start.
Level 1 The unknown number that makes a sentence true.
Example: In □ + 4 = 9, the missing number is 5.
Level 1 A line of math with numbers and a sign that you can read.
Example: "A number plus 2 is 7" becomes □ + 2 = 7.
Level 1 A group of facts that use the same numbers to undo each other.
Example: 3 + 5 = 8 and 8 − 5 = 3 are in one family.
These check the skills you'll need for this lesson — not the new lesson itself. Answer all 3, then press Show my path. No grade — it just suggests where to start.
1. "3 more than a number is 8." Which equation?
2. What number makes □ + 4 = 9 true?
3. "At least 6" describes numbers that are…
Vocabulary previewed and basics checked. Time to start the lesson.
Start Lesson 7-7 →