Math word problems worksheet for elementary students covering basic arithmetic, patterns, and geometry.

Let's solve each problem step by step:

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Problem 1: How many sides are on 4 triangles?

- A triangle has 3 sides.
- If there are 4 triangles, the total number of sides is:
\[
4 \times 3 = 12
\]

Answer: 12

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Problem 2: Can you finish the patterns?

#### Pattern 1: Numbers (1, 1, 3, 3, 5, 5, __, __, 9, __)
- The pattern alternates between repeating numbers. Each new number increases by 2.
- The sequence so far is: 1, 1, 3, 3, 5, 5.
- The next number should be 7 (since 5 + 2 = 7), and it will repeat: 7, 7.
- After that, the next number is 9, which will also repeat: 9, 9.

Completed pattern: 1, 1, 3, 3, 5, 5, 7, 7, 9, 9

#### Pattern 2: Colors (red, blue, yellow, yellow, red, blue, yellow, ____)
- The colors repeat in a cycle: red, blue, yellow.
- The sequence so far is: red, blue, yellow, yellow, red, blue, yellow.
- The next color in the cycle is red.

Completed pattern: red, blue, yellow, yellow, red, blue, yellow, red

#### Pattern 3: Numbers (12, 14, 16, __, 20, 22, __)
- The numbers increase by 2 each time.
- The sequence so far is: 12, 14, 16.
- The next number is 18 (since 16 + 2 = 18).
- After 20, the next number is 24 (since 22 + 2 = 24).

Completed pattern: 12, 14, 16, 18, 20, 22, 24

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Problem 3: How can you share this cake evenly with 6 friends? Draw a line to show the cut. Can you think of one more way to share the cake evenly?

#### Solution:
- To share the cake evenly among 6 friends, you need to divide the cake into 6 equal parts.
- One way to do this is to cut the cake into 6 vertical slices of equal width.
- Another way is to cut the cake into 3 horizontal layers and then divide each layer into 2 equal parts, resulting in 6 equal pieces.

Answer: Draw a line dividing the cake into 6 equal vertical slices. Another way is to cut it into 3 horizontal layers and then divide each layer into 2 equal parts.

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Problem 4: You have a dime, 2 nickels, 1 quarter, and 3 pennies. How much money do you have?

- Value of each coin:
- Dime: $0.10
- Nickel: $0.05 (2 nickels = $0.10)
- Quarter: $0.25
- Penny: $0.01 (3 pennies = $0.03)

- Total value:
\[
0.10 + 0.10 + 0.25 + 0.03 = 0.48
\]

Answer: $0.48

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Problem 5: If you had 3 staircases like the one in the picture, how many cubes would you need?

#### Solution:
- From the picture, the staircase consists of 5 cubes.
- If you have 3 such staircases, the total number of cubes needed is:
\[
3 \times 5 = 15
\]

Answer: 15

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Problem 6: A man was carrying balloons but the wind blew 12 away. He has 17 balloons left. How many did he start with?

#### Solution:
- Let the number of balloons the man started with be \( x \).
- The wind blew away 12 balloons, so he has \( x - 12 \) balloons left.
- According to the problem, he has 17 balloons left:
\[
x - 12 = 17
\]
- Solve for \( x \):
\[
x = 17 + 12 = 29
\]

Answer: 29

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Final Answers:

1. 12
2.
- Numbers: 1, 1, 3, 3, 5, 5, 7, 7, 9, 9
- Colors: red, blue, yellow, yellow, red, blue, yellow, red
- Numbers: 12, 14, 16, 18, 20, 22, 24
3. Draw a line dividing the cake into 6 equal vertical slices. Another way is to cut it into 3 horizontal layers and then divide each layer into 2 equal parts.
4. $0.48
5. 15
6. 29

Boxed Final Answer:
\[
\boxed{12, 1, 1, 3, 3, 5, 5, 7, 7, 9, 9; \text{red, blue, yellow, yellow, red, blue, yellow, red}; 12, 14, 16, 18, 20, 22, 24; \text{Draw as described}; 0.48; 15; 29}
\]