Step 2 / 6

Split the number you take away

★★★Not the suggested order

For 14 − 9, split 9 into 4 and 5: 14 − 4 − 5.

Cloud Bridge · Learn first

Example

Split 7 into 4 and what?

Answer: 3

Steps in this unit · Use 10 to subtract

1 2 3 4 5 6

← Take away the ones first Finish from 10 →

Use 10 to subtract · Numbers & Operations

When the ones are not enough, as in 14 − 9, use the 10. This is the idea behind borrowing.

For 14 − 9, split 9 into 4 and 5: 14 − 4 − 5.

This is step 2 of unit 42, “Use 10 to subtract”, in Stage 2: Numbers to 100, carrying and borrowing (ages 7–8). A round has 10 problems; 90% or better earns three stars. Everything is free with no sign-up, and your stars and XP are saved on this device.