Millie has a box of 1 hundred cubes. She also has a bag of 70 cubes how many trains of 10 cubes can she make

She can make 17 trains of 10 cubes because in total you have 170 cubes so to find out how many trains of 10 she can make you divide them by 10 and you get 17 or you can also divide 100 by 10 and you get 10, then you divided 70 by 10 and you get 7 finally you add 10+7 and get 17

You divide 100 by 10 then 70 by ten and you get 17