Equations
Christopher writes and equation for his array. The array has 5 rows with 4 circles in each row. What is his equation?
4+4+4+4+4=20
Dherien plants apple trees. He plants 3 rows of of trees. There are there trees in each row. Draw the array and write an equation.
3+3+3=9
How do you know if a number is even?
It ends in 0, 2, 4, 6, 8.
Write an equation to math the array. Write 2 for 50 extra points!
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5+5+5+5=20
Write an equation with an EVEN sum.
Answers vary...
Ms. Peppenelli has 5 rows of pennies with 2 pennies in each row. Write an equation to show how many pennies Ms. Peppenelli has in all?
2+2+2+2+2=
How do you know a number is odd?
It ends in 1, 3, 5, 7, 9.
What is an array?
An array is a figure with rows and columns.
Is the sum of this equation a odd number? Why?
3+9=12
No, 2 is even because if you skip count you get 0, 2, 4, 6, 8.
Also, the number ends in 2.
Draw an array to match the equation:
4+4+4=12
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Aubrey writes the equation 6+4=10. Is her sum even or odd? and WHY?
He sum is odd because odd numbers end in 0.
How many students are in this class? Is the number even or odd and why?
Various responses...