Multiplicative comparison

Multiplicative Comparison

Multiplicative comparison

What do you think multiplicative comparison means?

Multiplicative Comparison

What is multiplicative comparison?

Multiplicative comparison is comparing two quantities such that when one is multiplied by a specified number, the other is produced.

Ex. Sam has twice as many balloons as Sid. Sid has 3 balloons. How many balloons does Sam have?

3 x _ = _

3 x 2 = 6

Multiplicative Comparison

Example problem

Chloe read 10 pages of a book on Monday. She then read 3 times as many pages on Tuesday. How many pages did Chloe read on Tuesday?

Multiple Choice

The giraffe in the zoo is 3 times as tall as the kangaroo. The kangaroo is 6ft tall. How tall is the giraffe?

• 3

• 18

• 6

• 12

Multiple Choice

A gray umbrella costs $8.00. A yellow umbrella costs 2 times as much as the gray umbrella. How much does the yellow umbrella cost?

• $14.00

• $16.00

• $18.00

• $12.00

Multiple Choice

Tom ran 4 laps around the football field. Sam ran 5 times as many laps as Tom. How many laps did Sam run?

• 15 laps

• 30 laps

• 10 laps

• 20 laps

Multiple Choice

A rubber band is 6cm long. How long would the rubber band be if it were stretched to be 3 times as long?

• 12cm

• 18cm

• 24cm

• 9cm

Multiple Choice

John is 3 years old. His sister is 3 times his age. How old is John’s sister?

• 6

• 10

• 9

• 8