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 fourth grade students have been exploring factors and multiples. Their interest in factor trees and factor rainbows inspired some additional work on greatest common factors and least common multiples! Using their factor trees, the fourth graders have learned to find the prime factorization of a number which is helpful in determining the GCF and LCM of large numbers!
We have learned that the minds of are our classmates can be very helpful when solving a problem!
The first graders are becoming a great group of problem solvers! They have learned to approach difficult math tasks by using the different problem solving strategies we have practiced in class! The Navigate students have learned to draw pictures, use objects, make tables, and find patterns to take on new and challenging math tasks!
Welcome to Math Navigate!