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Number order · Numbers & Operations

Put 1 to 20 in order, find missing and next numbers, and place numbers on a number line.

This is step 2 of unit 5, “Number order”, 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.