Math 1 · Lesson 3 · Step One · part 9 of 9
Practice Problems
Try them, get help one step at a time, then print how it went.
Practice: try it, then get help one step at a time
Try each problem yourself first. Use Hint, Show next step, and Reveal answer only when you want them. Say the move out loud: change the operation to its partner, swap in the inverse.
My results
Finished the practice? Print a page that shows each question, what you typed or chose, the correct answer, and how it went. Good for showing a teacher or keeping in a folder.
Exit ticket
On paper or an index card. Say the move as you write.
- Rewrite 10 − 6 using addition, and 20 ÷ 5 using multiplication.
- Find −7 + (−3) and −7 + 3 using owe and have.
- Multiply 34 × 43. What number do you get, and why?
- Simplify 4x − x. Where was the invisible 1?
Check your exit ticket
- 10 + (−6) = 4, and 20 × 15 = 4.
- −7 + (−3) = −10 (owe and owe). −7 + 3 = −4 (owe 7, have 3, still owe 4).
- 1. A number times its reciprocal is the multiplicative identity, 1.
- 4x + (−1x) = 3x. The lonely x was 1x.