Deprecated: Required parameter $id follows optional parameter $type in /home3/allentea/public_html/interactive/application/models/Content_model.php on line 269

A PHP Error was encountered

Severity: Warning

Message: Trying to access array offset on value of type bool

Filename: controllers/Question.php

Line Number: 30

Backtrace:

File: /home3/allentea/public_html/interactive/application/controllers/Question.php
Line: 30
Function: _error_handler

File: /home3/allentea/public_html/interactive/index.php
Line: 315
Function: require_once

Grade 5 - Multi-step Problems
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 Betty purchased 9 books at the price of $4.95 per book. She paid the clerk with a $100 bill. How much change should Betty receive?