28 - 38 - 10 = ?, 36 - 56 - 20 = ?, 2 - 22 - 20 = ?, 33 - 43 - 10 = ?, 68 - 98 - 30 = ?, 42 - 72 - 30 = ?, 11 - 21 - 10 = ?, 9 - 49 - 40 = ?,

Subtraction Fluency Warmup Third Grade

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