Students explore the operations of addition and subtraction. They use estimation, a place value chart, and a calculator to place seven randomly generated numbers in the ones and tens position in a place-value chart to make a sum as close to 100 as possible. https://education.ti.com/en/activity/detail/100-or-bust
Students investigate a pattern using the constant function on the calculator, record the results displayed on the calculator, and describe how the constant key works. https://education.ti.com/en/activity/detail/constantly
This activity helps students to generate equivalent ratios and tables of values for ratios https://education.ti.com/en/activity/detail/building-a-table-of-ratios
This activity helps students to begin to reason about proportions using their knowledge of multiplication tables. They learn that ratio tables are one strategy to solve problems involving ratios. https://education.ti.com/en/activity/detail/ratio-tables
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