Step 4 / 5

Split the first number

★★★Not the suggested order

For 5 + 8, split 5 into 3 and 2: 3 + 2 + 8.

Cloud Bridge · Learn first

Example

Split 6 into what and 2?

Answer: 4

Steps in this unit · Make 10 to add

1 2 3 4 5

← Make 10 and finish Finish by splitting the first number →

Make 10 to add · Numbers & Operations

For sums over 10 like 9 + 3, split one number to make 10 first. This is the idea behind carrying.

For 5 + 8, split 5 into 3 and 2: 3 + 2 + 8.

This is step 4 of unit 40, “Make 10 to add”, 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.