This is a primary math activity designed to reinforce adding on a number line with sums up to 20. The Random Number Generator tool is used to determine a starting number, then the tool is used again to determine a number to add on. Use the pen tool to draw in adding on the given number line and record the corresponding number sentence in the white space below.
**I highly recommend using the "magic pen" tool to save yourself and your students time spend erasing in between turns.
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