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4-Digit Addition Number Bonds

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4-Digit Addition Number Bonds

Help the market team total its supplies. Use place-value number bonds, regrouping or another strategy that makes sense. Show your working for the longer problems.

Build numbers, then add

Split each number into thousands, hundreds, tens and ones. Look for place-value bonds that are easy to combine.

1.At the market, one stall has 2,347 apples and another has 1,428. Write each number in expanded form, then find the total.

2.A delivery brings 3,156 green apples and 2,734 red apples. Complete the place-value bonds: 3,156 = 3,000 + ___ + 50 + 6; 2,734 = 2,000 + 700 + ___ + 4. Then add the two amounts.

3.Which sum shows the correct regrouping for 4,582 + 1,297?

5,000 + 700 + 70 + 9 = 5,779
5,000 + 700 + 80 + 9 = 5,789
5,000 + 800 + 70 + 9 = 5,879
5,000 + 700 + 70 + 19 = 5,789

Choose a clever strategy

Use number bonds to make friendly totals. You can split a number in different ways if it helps.

4.The market team packs 5,263 feijoas in the morning and 2,418 in the afternoon. Find the total. You might combine the thousands, hundreds, tens and ones separately.

5.A shopper says, “3,674 + 4,215 is 7,889 because 70 + 10 = 80.” Is this reasoning correct? Explain what happened to the tens and give the correct total.

6.Fill the missing number bond: 6,129 + 1,856 = 6,129 + 1,800 + = 7,929 + . What numbers complete the calculation, and what is the total?

7.Match each addition problem to its total.

2,748 + 1,136
3,905 + 967
4,326 + 2,549

3,884
6,875
4,872

8.The market has 3,486 paper bags and receives 2,597 more. Estimate the total by rounding each number to the nearest hundred, then calculate the exact total.

9.A stall needs to reach 8,000 items. It already has 5,738. How many more items are needed? Show a number bond that bridges to 8,000.