Express a fraction with denominator 10 as an equivalent fraction with denominator 100, and use this technique to add two fractions with respective denominators 10 and 100. For example, express 3/10 as 30/100, and add 3/10 + 4/100 = 34/100.

Sample Activity:

Game: Sums of One

Also included in 4th Grade Math Centers:

Adding Fractions with Denominators 10 & 100

Use decimal notation for fractions with denominators 10 or 100. For example, rewrite as 62/100; describe a length as meters; locate on a number line diagram.

Sample Activity:

Fractions and Decimals

Compare two decimals to hundredths by reasoning about their size. Recognize that comparisons are valid only when the two decimals refer to the same whole. Record the results of comparisons with the symbols >, =, or <, and justify the conclusions, ., by using a visual model.

Sample Activity:

Comparing Decimals

Also included in 4th Grade Math Centers:

Decimal Sort

Using puzzles is a great way to learn Math facts and develop
mental calculation and thinking skills in a fun and easy way.

Most children are much more engaged and motivated solving puzzles
than working out pages of traditional math facts.

Using these math puzzles below will help your child to develop their Math fact skills
as well as their strategic thinking and reasoning.

There are different versions of each puzzle from 1st to 5th grade,
so it is easy to find an easier or harder version of the same puzzle.

Each puzzle comes complete with answers.