Number Bond Machines

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Learn About the Game Number Bond Machines

You pick a range of numbers up to 9,999,999. Predefined modes focus on bonds of five, ten or one hundred. The game shows a number and you enter a matching value then press a button for an instant result.

The grid shows numbers across the top and along the side. Two slots remain blank. You type each missing number to complete the total.

This tool offers a hands on way to sharpen addition skills. Players tackle sums up to 9,999,999 and watch each result unfold. Success with each challenge boosts confidence fast.