Step 1 / 5
Chain calculations
★★★Work from left to right: 12 + 6 − 4 = 14.
Addition Village · Learn first
Example
Solve it.
7 − 5 + 10 = ?
Answer: 12
Mixed round-up · Numbers & Operations
Chain calculations, compare answers and solve stories to finish Stage 1.
Work from left to right: 12 + 6 − 4 = 14.
This is step 1 of unit 30, “Mixed 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.