Part 1: Align, Colour and Add

Colour the tens digits blue and the ones digits red. Write each calculation in the correct place-value columns, then solve it.

1. 24 + 35 = ______

Tens: ______ Ones: ______

2. 43 + 26 = ______

Tens: ______ Ones: ______

3. 51 + 28 = ______

Tens: ______ Ones: ______

4. 62 + 17 = ______

Tens: ______ Ones: ______

Part 2: Find the Missing Number

Use tens and ones to find the missing number. Show your working.

5. 32 + ______ = 57

6. ______ + 24 = 68

7. 45 + 13 = ______

Write the missing digits in the place-value boxes:

Tens: ______ Ones: ______

Read each problem carefully. Write an addition calculation and solve it.

8. A shop has twenty-three red balloons and thirty-four blue balloons. How many balloons are there altogether?

9. Sam walks 41 metres in the morning and 27 metres in the afternoon. How many metres does Sam walk altogether?

10. A class collects 35 tins on Monday and 42 tins on Tuesday. How many tins do they collect altogether?