Add by bridging a multiple of ten
Lesson 2 / 15
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I can bridge ten to add single digit numbers to two-digit numbers.
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When adding a single digit and a two-digit number, the equation can be solved more efficiently by 'bridging ten.'
When bridging a multiple of ten, the second addend is partitioned so that it reaches the next multiple of ten.
Bridging ten is an efficient strategy because number pairs to ten can be used to calculate more easily.
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