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Addition and Subtraction Practice

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Addition and Subtraction Practice

Help Isla and Mere prepare for a Matariki celebration. Solve each problem and show your working where you can. Use place value to add and subtract three-digit numbers.

Warm-up: Place Value

Use the number line to help you think about three-digit numbers.

1.Complete the number pattern: 200, , 400, 500, 600, , 800.

Add for the Celebration

Isla is helping set up the celebration. Add each group carefully, lining up hundreds, tens and ones.

2.The celebration team makes 246 star-shaped decorations in the morning and 137 in the afternoon. How many decorations do they make altogether? Show how you regroup.

3.Mere counts 328 paper lanterns ready for the celebration. Another 254 arrive. How many lanterns are there now?

4.Choose the correct total: 175 + 286 = ?

5.Talia has 417 invitation cards. She adds 165 more to the pile. Which equation shows the total number of cards?

417 + 165 = 572
417 + 165 = 582
417 + 165 = 592
417 + 165 = 682

Subtract to Check and Solve

Subtract carefully. Think about whether you need to regroup a ten or a hundred.

6.There are 563 cups for the celebration. After 241 are used, how many cups are left?

7.The team prepared 402 star stickers. They give away 178. How many stickers remain?

8.True or false: 735 − 269 = 466. Check by adding your answer to 269.

TrueFalse

9.Arjun counts 684 glow-in-the-dark stars. Isla counts 297. How many more stars does Arjun count?

10.Make your own celebration number puzzle. Write two three-digit numbers that add to 700, then write a subtraction using the same numbers and solve it.