Final answer:
To break apart the factor 112 and find 7 × 112 using mental math and addition, we can multiply 7 by 10, then multiply 7 by 2, and finally add the two products together.
Step-by-step explanation:
To break apart the factor 112, we need to find 7 × 112 using mental math and addition. We can think of 112 as 7 times a number. We can start by multiplying 7 by 10, which gives us 70. Then, we can multiply 7 by 2, which gives us 14. Adding these two products together gives us the desired result of 84.