Question

circle all the odd numbers. underline all the even numbers.
122 343 728 910 423
round each number to the nearest 10 and 100.
328
593
385
sandra had 314 stickers in her sticker collection. jessie had 428 stickers. how many stickers did they have altogether?
find the difference between 783 and 366.
find the missing addend.
+113 = 177
mr. ruff has 6 baskets of tennis balls. each basket contains 11 balls. how many tennis balls does mr. ruff have?
write the fact family for the numbers 15, 5, and 3.
1.
2.
3.
4.

Explanation:

Step1: Determine the sum of stickers

To find the total number of stickers Sandra and Jessie have, we add the number of stickers each has. Sandra has \(314\) stickers and Jessie has \(428\) stickers. So, \(314 + 428\).

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Step2: Determine the difference between \(783\) and \(366\)

To find the difference \(783-366\), we can break it down.

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Step3: Find the missing addend

Let the missing addend be \(x\). We know that \(x + 113=177\). Using the formula \(x=177 - 113\).

$$177-113 = 64$$

Step4: Find the number of tennis balls

Mr. Ruff has \(6\) baskets and each basket has \(11\) balls. Using the multiplication formula \(6\times11\).

$$6\times11=(6\times10)+(6\times1)=60 + 6=66$$

Step5: Write the fact - family

For the numbers \(15\), \(5\), and \(3\):

1. \(3\times5 = 15\)
2. \(5\times3=15\)
3. \(15\div3 = 5\)
4. \(15\div5=3\)

Answer:

• Total stickers: \(742\)
• Difference: \(417\)
• Missing addend: \(64\)
• Number of tennis balls: \(66\)
• Fact - family: \(3\times5 = 15\), \(5\times3 = 15\), \(15\div3=5\), \(15\div5 = 3\)