Take the digits 5, 4, 3, 2 and 1, in that order. Using those digits and the four arithmetic signs — plus, minus, times and divided by — you can get 1 with the sequence 5 – 4 + 3 – 2 – 1. You can get 2 with the sequence (5 – 4 + 3 – 2) x 1.
The question is … how many numbers from 1 to 40 can you get using the digits 5, 4, 3, 2, and 1 in that order along with the four arithmetic signs?
You can group digits with parentheses, as in the example. There are no tricks to this, though. It’s a straightforward puzzle. How many numbers from 1 to 40 can you get — and, specifically, what number or numbers can you not get?
If the letter a= 1 cent, b= 2 cents, c= 3 cents, and so on up to z= 26
cents, how many $1.00 words can you make
Arrange all the integers from 1 to 9 in such a way that the numbers total
Here's an example:
12 + 3 + 4 + 5 - 6 - 7 + 89 = 100
You don't have to keep the numbers in order and you can use any
operations to get your answer.
How many combinations can you find?
The second grade students have been learning about transformations. They can transform images through rotations, reflections, and translations. Eventually, they will apply their knowledge to transformations on a coordinate plane. Because of this, we worked together to identify the x-axis and y-axis so that they could plot ordered pairs. In anticipation for Thanksgiving, they are creating a mystery image by plotting coordinates. We will have to wait until after break to uncover the image!
The second grade Math Navigate classes started their geometry unit. They have been exploring lines of symmetry and symmetrical shapes. Using mirrors, they have discovered that some shapes are not symmetrical while others have an infinite amount of lines of symmetry. They will be putting their knowledge of symmetry to good use in this week’s math task! Next week they will start looking at reflections, rotations, and translations!
The Second Grade students have been exploring problem solving strategies. Using the PLANE method, they have been taking on a variety of math tasks!