Step 2 / 5
The biggest difference
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Subtraction round-up · Numbers & Operations
Finish subtraction with true-or-false, the biggest difference and equal differences.
This is step 2 of unit 28, “Subtraction round-up”, in Stage 1: Numbers to 20, adding and subtracting (ages 6–7). A round has 8 problems; 90% or better earns three stars. Everything is free with no sign-up, and your stars and XP are saved on this device.