5.NBT.A.1

The Hack: Place Values

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Game Info for Teachers

COMBINED RATING

4.3 Stars

TEACHERS (108)

4.4

STUDENTS (14464)

4.3

LENGTH

14 Minutes

GRADES

CAPABILITIES

iPad Support

Spanish Language Support

Text-to-Speech Support

Description

Save the world from a fast spreading computer virus by hacking into its servers and defeating it with your knowledge of place value!

Vocabulary Words

place value

base ten system

decimal

Instructions

Play through this interactive game to learn about Understand Place Value. Suitable for Grade 3, Grade 4, Grade 5.

Main Concepts

Dividing by 10 moves the multiplicand one place to the left.

In the base 10 system, the value of each place is 10 times the value of the place to the immediate right.

In the base 10 system, the value of each place is 1/10 the value of the place to the immediate left.

Multiplying by 10 moves the multiplicand one place to theright. If it is a single digit number then the imagined 0’s are placed in the ones place.

10 tens = 1 hundred but 10 tenths does not equal one hundredth (common misconception).

Discussion Questions

Before the Game

What is the place value of the number that is two spaces to the left of the decimal? What is the place value of the number that is two spaces to the right of the decimal? How many times greater is the 1000's place than the 10's place?

After the Game

How did you use place value to figure out the answers without using paper and pencil or a calculator? What are the rules for multiplying by multiples of 10 using the zeros?