Fill in the blanks

How would you fill the missing squares?

What comes next?

How would you shade the last square?

Number Crossword

Prime Numbers

 

The year x squared

Isosceles Triangles

Here are some points. Join any three of them and make isosceles triangles. How many can you make?

Sine Wave From A Cylinder

a slice through a cylinder creates an ellipse. when unrolled, it creates a sine wave pic.twitter.com/Mrl5Gcd3A4

— Matt Henderson (@matthen2) June 25, 2020

 

Ulam Spiral

Start from 1 and wrıte numbers until 100 as a spiral.

This is called a Ulam spiral. It is devised by a mathematician Stanislaw Ulam in 1963. 

What do you observe?

Three Regions

Dark and Yellow Circles

Cubes with Red Dots

Unit Cube

Unit cube#MTBoS #iteachmath #math #maths pic.twitter.com/jE5m8SzcAV

— Idan Tal (@MagicPi2) June 15, 2020

Magic Squares 5

Fill the given magic square with numbers from 11 to 45. all rows, columns and diagonals should add to the same number. Some numbers are given to help you.

Symmetric Addition 2

Symmetric addition

 

Palindrome Dates

 

An easy arithmetic task

Another Number Pattern Puzzle

Make 1000!

Use 1, 2, 3, 4, 5, 6 and 7 and math operations to reach 1000.

Puzzle with Sets

Place numbers inside the regions in given sets, so that the yellow regions will be the sum of the intersecting green regions. You can use each number once only.

Example

Letters

What is the pattern here?

1, 2, 3, 4, 5, 6, 7, 8, 9

1  2  3  4  5  6  7  8  9  = 99

Add pluses between the numbers in such a way that you get 99. 

In how many different ways can you do it?

1+2+3+4+5+67+8+9=99

1+23+45+6+7+8+9=99

9, 8, 7, 6, 5, 4, 3, 2, 1 (3)

9   8   7   6   5   4   3   2   1  = 99

Add pluses between the number in such a way that you get 99. 

Can you do it in two different ways?

                                                                           [Resource]












































9+8+7+65+4+3+2+1
9+8+7+6+5+43+21

9, 8, 7, 6, 5, 4, 3, 2, 1 (2)

Use 1, 2, 3, 4, 5, 6, 7, 8 and 9 once and mathematical operations to get 900.

9, 8, 7, 6, 5, 4, 3, 2, 1 (1)

Use 9, 8, 7, 6, 5, 4, 3, 2 and 1 once and mathematical operations to get 4444.

Basic Level Explorations

Easy algebra substitution

Palindromic Years

What is the difference between the last and the next palindromic years?

Circle Problem

Beautiful Pattern

Exponent Laws Question

[source]

Unit Circles

What comes next?

What replaces the question mark?

Fill in the blanks

Finding 6

This is a famous type of puzzle (use four 4s to get numbers from 1 to 20 for example), 

I saw this version on Kyle D. Evans' twitter account .

.