Grade 4 - Progress in Mathematics

Make a table.

If Steve has 1 green marble,

he would have 3 red marbles.

Write those numbers in the table.

If Steve has 2 green marbles,

he would have 2 
3 red marbles.

Check your computation, or act out the problem.

Visualize the facts of the problem as you reread it.

Facts: Steve has 24 marbles.

For 1 green marble, there are 3 red marbles.

Question: How many red marbles does Steve have?

Steve has 24 marbles.

Each marble is green or red.

For every green marble, Steve

has 3 red marbles. How many

red marbles does Steve have?

Problem-Solving Strategy:

Make a Table or List

1-12

Complete the table.

Multiply each number of green marbles by 3.

Then add to find a column that shows 24 marbles.

1

18 red

 6 green

24

Steve has 18 red marbles.

Color Number of Marbles

green 1 2 3 4 5 6

red 3 6 9 12 15 18

total 4 8 12 16 20 24

Color

green 1

3

4

2

?

?

?

?

?

?

?

?

red

total

Number of Marbles

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