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There are twice as many girls as boys in the 4th grade classes at Joe's school. There are a total of 81 4th graders. How many boys and girls are there in the 4th?

G+B=81

G=2B
2B+B=81
3B=81
B=27
G=54

5670

which is the best estimate for the height of the average door inside a house

a.8 inches

b.8 yards

c.8feet

d.meters

414divide by 9

How many sixths are equivalent to 1 half?

1\3

Use number sense explain how you can tell if your estimate answer is greater or less than the exact answer to a multiplication problem

8=5

If a penny has a mass of 48 grams, about what would be the mass of 699 pennies?

Masha You have to divde 81 divde 2=40.5

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