Question

problem-solving applications: name
mixed strategies
read plan write check
use a strategy you have learned.
geris sticker collection
key: each stands for 3 stickers.

1. circle the sticker that geri has the most of.
2. how many more rocket stickers than car stickers does geri have?

geri has ___ more rocket stickers.

1. how many train stickers does geri have?

geri has ___ train stickers.

1. jason thinks of an even number between 63 and 69. it has more tens than ones. what is the number?

___

1. ami counts her key chains. she has between 13 and 19. you say the number when you count by 4s from zero. how many key chains does ami have?

ami has ___ key chains.

Explanation:

Step1: Analyze the number of each sticker

• Car sticker: \(3\times3 = 9\) (since \(3\) smile - faces and each represents \(3\) stickers)
• Rocket sticker: \(4\times3=12\) (since \(4\) smile - faces and each represents \(3\) stickers)
• Train sticker: \(2\times3 = 6\) (since \(2\) smile - faces and each represents \(3\) stickers)

Step2: Answer question 1

Since \(12>9>6\), the rocket sticker is the one Geri has the most of.

Step3: Answer question 2

The number of rocket stickers is \(12\), and the number of car stickers is \(9\). The difference is \(12 - 9=3\)

Step4: Answer question 3

As calculated above, the number of train stickers is \(6\)

Step5: Answer question 4

Even numbers between \(63\) and \(69\) are \(64,66,68\). For \(64\): tens digit \(=6\), units digit \(=4\) (\(6>4\)); for \(66\): tens digit \(=6\), units digit \(=6\) (\(6 = 6\)); for \(68\): tens digit \(=6\), units digit \(=8\) (\(6<8\)). So the number is \(64\)

Step6: Answer question 5

Numbers counted by \(4\)s from zero: \(4,8,12,16,20,\cdots\). The number between \(13\) and \(19\) is \(16\)

Answer:

1. Rocket sticker
2. \(3\)
3. \(6\)
4. \(64\)
5. \(16\)