The Best Free 4th Grade Math Resources: Complete List! — Mashup Math - Free Printable

Let's solve both fun math puzzles step by step. These are algebraic puzzles where each image represents a number, and we need to find the value of the unknowns.

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🔹 Puzzle 1: Fruits

We have:

1. 🍉 + 🍉 = 16
2. 🥕 + 🍉 = 18
3. 🥕 + 🍐 = 15
4. 🍉 + 🍐 = ?

Let’s assign variables:

- Let W = watermelon (each group has 3 slices)
- Let K = kiwi
- Let P = pear

From equation (1):
> W + W = 16 → 2W = 16 → W = 8

So, one group of watermelon (3 slices) = 8

Now from equation (2):
> K + W = 18 → K + 8 = 18 → K = 10

So, kiwi = 10

From equation (3):
> K + P = 15 → 10 + P = 15 → P = 5

So, pear = 5

Now, the question is:
> W + P = ? → 8 + 5 = 13

✔ Answer for Puzzle 1: 13

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🔹 Puzzle 2: Ice Creams

We have:

1. 🍫 × 🍫 = 36
2. 🍦 + 🍫 = 36
3. 🍦 − 🍨 = 20
4. 🍨 + 🍫 = ?

Assign variables:

- Let C = chocolate bar (ice cream sandwich)
- Let P = popsicle
- Let I = ice cream cone

From equation (1):
> C × C = 36 → C² = 36 → C = √36 = 6
So, chocolate bar (C) = 6

From equation (2):
> P + C = 36 → P + 6 = 36 → P = 30
So, popsicle (P) = 30

From equation (3):
> P − I = 20 → 30 − I = 20 → I = 10
So, ice cream cone (I) = 10

Now, the question is:
> I + C = ? → 10 + 6 = 16

✔ Answer for Puzzle 2: 16

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✔ Final Answers:

- Fruit puzzle: 🍉 + 🍐 = 13
- Ice cream puzzle: 🍨 + 🍫 = 16

These are great logic puzzles that help build algebraic thinking! 🎉