Practice for lesson 1 of 15, 9 problems
Practice: Whole numbers and the properties of operations
Whole number practice problems with solutions: the commutative, associative and distributive properties, division with remainders, dividing by zero and mental math.
Review the lessonWork each problem out on paper before you open the solution. If your answer is off, compare the steps and find where you went wrong. If a problem stops you cold, go back to the lesson: every set links to it.
Warm-up
Level up
Word problems
Quick check
Practice 8Quick check
Which property does \(4 \cdot (25 \cdot 9) = (4 \cdot 25) \cdot 9\) show?
The factors stay in the same order; only the parentheses move.
Practice 9Quick check
Which expression is undefined?
You can't divide by zero. The other three all equal \(0\).
All done?
If you got most of them right, you're ready to move on. If not, reread the lesson and try the ones you missed again in a few days.