How to do Long Division Part Two (Dirty Monkeys Smell Bad)
Mnemonic – memory aid Dirty: Divide Monkeys: Multiply Smell: Subtract Bad: Bring Down
Vocabulary Words for the parts of the problem quotient remainder divisor dividend product
Step One -- Divide Look at the first two digits of the dividend. Decide how many times the divisor can go into the dividend without going over. “Twenty-three can be divided into two equal groups of eight with some left over.” Think: How many times can 8 go into 23 without going over? 2 8 235
Step Two – Multiply Multiply the divisor by the quotient. Write your answer under the dividend. Think: 2 x 8 = 16 2 8 235 16
Step Three – Subtract Subtract the product from the dividend. Notice you still have a five in the dividend. Think: 23 – 16 = 7 2 8 235 16 7
Step Four – Bring Down Bring the five down next to the seven. 2 Repeat steps 1 – 3. 2 8 235 16 75
Step One -- Divide Decide how many times the divisor can go into the new number without going over. “Seventy-five can be divided into nine equal groups of eight with some left over.” Think: How many times can 8 go into 75 without going over? 2 8 235 16 75
Step Two – Multiply Multiply the divisor by the new quotient. Write your answer under the dividend. Think: 9 x 8 = 72 29 8 235 16 75 72
Step Three – Subtract Subtract the product from the previous answer. There is nothing more to bring down. Your answer becomes the remainder. Think: 9 x 8 = 72 29 R 3 8 235 16 75 72 3
Review the four steps Dirty – divide the dividend by the divisor. Monkeys – multiply the quotient by the divisor and write the answer under the dividend. Smell – subtract the product from the dividend. Bad – bring down the next part of the dividend and repeat steps 1 – 3.
Your Turn Watch Mrs. Bauer solve the next few problems. Copy each step as she does it. Rehearse in your mind the four steps. Try it on your own.