Mental maths 1

100 more than 6387?

• 7387

• 6278

• 6388

• 6487

Answer explanation

To find 100 more than 6387, add 100 to 6387. The correct answer is 6487.

Form the least and greatest number using all the digits

5,3,1,0

Answer explanation

The least number that can be formed using all the digits 5, 3, 1, and 0 is 1035. The greatest number that can be formed is 5310. Therefore, the correct choice is 0, as it is the least number.

------- tens =1000

• 20

• 100

• 50

• 10

Answer explanation

The correct answer is 100 because 10 tens make 1000.

What is an ALGORITHM?

• A very hard maths problem

• A step by step solution

• A musical beat

• An algebra problem

Answer explanation

An algorithm is a step by step solution. It provides a systematic approach to solving a problem.

The place value of 8 in

8904 is

• 80

• 900

• 8000

Answer explanation

The place value of 8 in 8904 is 8000 because 8 is in the thousands place.

‘Sum’ is the same as

• Division

• Subtraction

• Addition

• Multiplication

Answer explanation

The correct choice is Addition because 'Sum' refers to the result of adding two or more numbers together.

Repeated addition is called ------------.

• Addition

• Multiplication

• Subtraction

Answer explanation

Repeated addition is called multiplication. It is the process of adding a number to itself multiple times. In this case, the correct choice is multiplication.

100 more than the largest 2 digit number is ---------.

• 109

• 199

• 299

• 99

Answer explanation

The largest 2 digit number is 99. Adding 100 to it gives us 199, which is the correct answer choice.

6500+500=------

• 7000

• 8000

• 600

• 65000

Answer explanation

To find the sum of 6500 and 500, add the two numbers together. The correct answer is 7000.

33+-----=40

• 6

• 7

• 10

• 5

Answer explanation

To find the missing number, subtract 33 from 40. The correct answer is 7 because 40 - 33 = 7.