To write an expression from words, you have to know which operation each word means — sum is add, difference is subtract, product is multiply, quotient is divide. Get these word clues warm and writing expressions feels easy.
Answer these 3, then press Show my path. No grade — this just points you to the right level.
1. The sum of 4 and 3 means…
2. The product of 5 and 2 means…
3. The difference of 9 and 4 means…
Each math word points to one operation: sum = +, difference = −, product = ×, quotient = ÷. A letter like n stands for a number we don't know yet.
Your quick check picks one for you, but you can switch any time:
Level 0 Match the word to the answer, one step at a time.
A. The sum of 5 and 4 = ___
Sum means add: 5 + 4 = 9.
B. The difference of 7 and 2 = ___
Difference means subtract: 7 − 2 = 5.
C. The product of 3 and 2 = ___
Product means multiply: 3 × 2 = 6.
Level 1 Pick the matching expression.
A. 'The sum of a number n and 7' is…
Sum means add, so n + 7.
B. 'The product of 4 and a number n' is…
Product means multiply, so 4 × n.
C. The quotient of 10 and 2 = ___
Quotient means divide: 10 ÷ 2 = 5.
Level 2 Warm up straight into writing expressions.
A. '5 more than a number n' is…
'More than' adds, so n + 5.
B. '3 less than a number n' is…
'3 less than n' takes 3 away from n: n − 3.
1. 'The sum of a number n and 8' is…
Sum means add: n + 8.
2. The product of 6 and 2 = ___
Product means multiply: 6 × 2 = 12.
You've practiced exactly what Lesson 6-3 uses. Time to dive in.
Start Lesson 6-3 →