When you add a zero to the problem, it shows you are now multiplying in the double-digits. Let's say you are multiplying 12x12. First you cover up the one then multiply them. Then cover up the two and you have 10. When you multiply them, it ends in a zero. Don't think of it as adding a zero but adding to products.
Answer:
90
Step-by-step explanation:
1/2x10x3.6=18
18x5=90
Answer:
C. 30.
Step-by-step explanation:
Each cube has a volume of 1 * 1* 1 = 1 cu cm.
The answer is 30 unit cubes because 30 *1 = 30.
Answer:
1. D
2.C
3. A
4.B
5.C
6. C? or D(i think c cause it's 3 places but it can be d because the 0 is just a placeholder)
7.C
8.C
Step-by-step explanation:
