# Wishball: tournament

Learning Material  |  Interactive Lesson

Published on 2018 August 10th

Description
Challenge your understanding of place value in whole numbers and decimal fractions, from 0.001 to 9999. Either add or subtract numbers to reach a target number. For example, receive a starting number of 39.61. Spin the number 5 and decide whether to add or subtract 0.05, 0.5, 5 or 50 to reach your target number of 70.12 within 20 turns. Use the ‘Wishball’ to select your final digit. Try to reach the target in as few turns as possible. Play a random game, replay a previous game or play a game with the same target number as someone else. This learning object is one in a series of 15 objects.
Objective
Students identify the place value of each digit in four-digit numbers from 0.001 to 9999.
Students add and subtract in thousandths, hundredths, tenths, ones, tens, hundreds and thousands.
Students read and interpret different representations of numbers from 0.001 to 9999.
Students apply mental computation skills.

#### Curriculum Information

 Education Type K to 12 Grade Level Grade 4, Grade 5, Grade 6 Learning Area Mathematics Content/Topic Numbers and Number Sense Patterns and Algebra Intended Users Learners, Students Competencies