The best rule of thumb in assessment is to be sure children understand one-digit numbers before going on to:

A. subtraction.

B. two-digit addition.

C. three-digit addition.

D. regrouping.

Use complete sentences to explain how you could use a number line to explain why 2 < 3 < 5.

Find the length of xy

A drawer contains 8 red shirts, 6 blue shirts, and 7 white shirts. If a shirt is drawn at random, what is the probability that the shirt will be blue?

When ryan is 10, his brother kyle is 15. When ryan is 16, kyle will be 21. When ryan is 21, kyle will be 26. Write and solve an equation to find kyle's age when ryan is 52

Leibniz was making zweibelkuchen for lunch. He puts 3 4/5 cups of flour in the bowl then added another 2 2/3. How many cups of flour did Leibniz use?

Which graph represents the solution set for - 4 (1-x) <-12+2x?

The A company is selling two different sized medicine balls to a local college's athletic department. ratio of the diameters is 15: 11. If the diameter of the smaller ball is 55 cm, what is the volume of the larger ball?

Factor this expression. 4x - 20 A. 4 (x - 16) B. 4 (x - 5) C. 4 (x-10) D. 4 (x-6)

A school science club conducts a car wash to raise money. The club spends $12 on supplies and charges $5 per car. After the car wash, the club has a profit of $113. How many cars did the members of the science club wash?

What are the prime factors of 625? A. 5, 5, 25 B. 1, 5, 5, 5, 5 C. 5, 5, 5, 5 D. 25, 25