Mental Math Challenge: UIL Number Sense Problems 1-10

The video tutorial covers the UIL number sense test for high school students, focusing on mental math techniques. It explains the rules of the test, which require solving problems mentally without paper and pencil. The instructor demonstrates solving various math problems, including addition, multiplication, subtraction, division, percentages, mixed numbers, factoring, and approximations. Each problem is solved step-by-step, emphasizing mental calculation strategies.

What is the main rule for solving problems in the UIL Number Sense Test?

• Use a computer.

• Write down all steps.

• Solve problems mentally.

• Use a calculator.

What is the sum of 2012 and 2013?

• 4025

• 4035

• 4015

• 4005

What is the product of 2012 and 6?

• 12072

• 12172

• 12272

• 12372

What is 2102 minus 2012?

• 110

• 100

• 80

• 90

What is 2012 divided by 5 as a decimal?

• 405.4

• 404.4

• 403.4

• 402.4

What is 16 squared?

• 246

• 256

• 266

• 276

What is the sum of 1 and 3/5 plus 2 and 3/4 as a mixed number?

• 4 and 10/20

• 4 and 9/20

• 4 and 8/20

• 4 and 7/20

What is 20 times 12 plus 20 times 13?

• 500

• 530

• 510

• 520

What is 5.6 divided by -1.25?

• -4.38

• -4.18

• -4.48

• -4.28

What is an approximation of 2128?

• 436

• 446

• 456

• 466