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Tony has the numbers 10, 1, 6, and 8, and can use the arithmetic operations (addition, subtraction, multiplication, division) as well as brackets, but he cannot use any number more than once, nor combine digits to form multi-digit numbers like 168.

To find the biggest number Tony can make, let's explore the possible combinations:

1. **Multiplying larger numbers** often produces bigger results. Let's try:
   \[
   10 \times 8 = 80
   \]

2. Now, we have \(80\), and we can still use the numbers 1 and 6. Adding or multiplying could increase the result further:
   \[
   80 + 6 = 86
   \]

3. Adding 1 to 86 gives:
   \[
   86 + 1 = 87
   \]

Thus, the biggest number Tony can make is **87**, and the operations he can use are:
\[
(10 \times 8) + 6 + 1 = 87
\]

Let me know if you'd like further details, or have any questions.

Here are 5 related questions:
1. What is the smallest number Tony can make with these operations?
2. Can you make the same largest number without using multiplication?
3. What would the result be if Tony used subtraction instead of addition?
4. Is it possible to reach 87 using a different combination of operations?
5. Can Tony get a result over 100 using only the given operations?

**Tip:** Multiplying large numbers first is often the best strategy for maximizing results.

Tony is using these numbers: 10, 1, 6, 8 to make the biggest number possible using arithmetic operations (+, -, ×, ÷) and brackets. He cannot use any number more than once, combine digits (e.g., 168), or use powers. What is the biggest number he can make?

Find out how to create the largest number using 10, 1, 6, and 8 with arithmetic operations and brackets. This problem involves applying order of operations and combining addition, multiplication, and brackets to find the biggest possible result. Suitable for students in Grades 4-6.

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