Bridge 10: Adding Across Tens

Year 3 Mathematics Learning to add 1-digit numbers across multiples of 10

What is 'Bridging 10'?

A clever way to add numbers We 'bridge' or cross over to the next ten Makes hard sums much easier! Like building a bridge to help us get across

The Bridge 10 Method

Let's Try Together: 37 + 5

Start with 37 How much to reach 40? We need 3 Split 5 into 3 + 2 37 + 3 = 40, then 40 + 2 = 42

Your Turn: Practice Time!

Use your mini whiteboards Try these problems: 48 + 4 29 + 6 56 + 7 Remember to bridge through the tens!

Think and Share

Why does bridging 10 make addition easier? What other addition problems could we solve this way? Can you explain the steps to a friend?

When Do We Use Bridge 10?

{"left":"When adding crosses a multiple of 10\nExamples: 29 + 3, 47 + 5, 68 + 4\nMakes mental math faster","right":"Helps us stay organized\nWhen we don't have a calculator\nBuilds number sense and confidence"}

Well Done, Mathematicians!

You've learned to bridge 10! This strategy will help you with lots of addition Practice makes perfect Keep looking for chances to use your new skill