Because you cant put 2 numbers into the ones column so you have to carry the 1.
Answer:
A 25
Step-by-step explanation:
<span>In general, if you want x y ths of a number, you multiply it by xy . Let's seek the answer to your question step by step: One tenth of 400 is 110×400=40 1 10 × 400 =40 . One quarter of one tenth of 400 is 14×40 1 4 × 40 , since we found in step 1 thatone tenth of 400 is 40 , and this is equal to 10 .</span>plx mark brainlist