A 6 cm by 4 cm by 5 cm container is half-filled with rock salt. How much rock salt is still needed to completely fill the container?
1. What is asked in the problem?
a. the length of the container b. the height of the container c. the width of and height of the container d. the amount of rock salt to fill the container
2. What is the number sentence to solve the problem?
a. 6 + 4 x 5 = N b. 6 x 4 + 5 = N c. (6 x 4 x 5) Ă· 2 = N d. 6 x 4 x 5 x 2 = N
3. What is the answer? a. 120 cm b. 100 cm c. 90 cm d. 60 cm​
