Students will begin learn that division is splitting things into equal groups. When discussing division, we use the key terms: dividend, divisor, and quotient. The dividend is the same as the product of a multiplication sentence; it is the largest number. The divisor is the number of groups we are splitting the total into. The quotient is the answer in a division problem; this is the number of objects in each group. We also discuss that it is the inverse operation (un-doing; opposite) to the multiplication tables that we have previously learned. We use related facts to show this relationship, written in a fact family (a set of related equations, with two division, and two multiplication sentences). We use fact families frequently to show how numbers correlate to one another, with multiplication and division equations.
We conclude the chapter by learning the division rules for 1 & 0:
We conclude the chapter by learning the division rules for 1 & 0:
- Zero divided by any number equals zero. 0/N=0
- Any number divided by zero is not defined (you cannot do it!). N/0=ND
- Any number divided by itself equals one. N/N=0
- Any number divided by one is the number you started with/other number. N/1=N