Lesson Steps:

Because 4×5=20,
45÷5=9,
15-8=7
And last
95-5 dogs =90 dogs
And 95-5 cats =90 cats
And please use your common sense

Answer:

20÷5=4
9×5=45
7+8=15
Problem solving:90 dogs and 90 cats

Level: Learning for fun
Subject: Math
Topic: Problem solving