Answer:
Millie can make 17 trains of 10 cubes with the total number of cubes she has.
Explanation:
To find out how many trains of 10 cubes Millie can make, we need to calculate the total number of cubes she has and divide it by 10.
Step 1: Add the number of cubes in the box (100) to the number of cubes in the bag (70).
Total number of cubes = 100 + 70 = 170
Step 2: Divide the total number of cubes by 10 to find out how many trains of 10 cubes Millie can make.
Number of trains of 10 = 170 / 10 = 17
Therefore, Millie can make 17 trains of 10 cubes with the total number of cubes she has.