Rebecca has 10 recipe cards. Sarah has 3 times as many. How many recipe cards does Sarah have?
30
100
List the factors of 10
10: 1, 2, 5, 10
200
Solve for n: 10 - n = 1
9
200
Round 392 to the nearest hundred.
392: 400
200
How do you say 2,987,392
Two million, nine hundred eighty-seven thousand, three hundred ninety-two.
200
The boys ran track for many months. At the end, Fred had ran 10 miles. Rahkell ran twice as far. How far did Rahkell run?
Rahkell: 10 x 2 = 20
200
List the first five multiples of 7
7, 14, 21, 28, 30
300
What is the rule for the following pattern?
2, 4, 6, 8, 10
Add 2
300
Round 234 to the nearest ten. Remember, keep the hundred's place the same.
234 = 230
300
Expand 2,506
2,000 + 500 + 6
300
Kenya ate 2 slices of pizza. Ajah at three times as many. How many did Ajah eat?
Ajah: 2 x 3 = 6
300
2, 3, 4, 5, 6, 7, 8, 9, 10
List the prime numbers. How do you know you are correct?
2, 3, 5, 7
Prime numbers only have two factors: 1 and itself.
400
Emmanuel has 5 CDs in his collection. Uriel has more than Emmanuel. Altogether, the boys have 15 CDs. How many does Uriel have? Make an equation to show your answer.
5 + N = 15
15 - 5 = 10
400
The number 394 rounds to what hundreds? Why?
400
394 is closer to 400 on the number line.
400
A student read the number 391 as three hundred and ninety-one. What was the error in the reading? How would you correctly read it?
AND
You cannot say "and" unless you are talking about a decimal.
400
Fletcher had eighteen pieces of candy. He gave three to Christian, four to Andrew, seven to Ja'Nya. How many does Fletcher have left?
18 - 3 = 15
15 - 4 = 11
11 - 7 = 4
4 pieces left.
400
2, 3, 4, 5, 6, 7, 8, 9, 10
Which of these numbers are composite?
How do you know?
4, 6, 8, 9, 10
Composite numbers have more than 2 factors.
500
n divided by 2 = 8
What is n?
2 x 8 = 16 n = 16
500
Round 921 to two different places.
921: 900
921: 920
500
Ninety thousand one thousand, four hundred seventy-one. What is wrong with this answer? How would you say it correctly?
It said the word thousand twice. You can only say it once at the end of the number's period.
Ninety-one thousand, four hundred seventy-one.
500
Yasmine stayed awake for 23 hours. Simone tried, but fell asleep nine hours before Yasmine did. How many hours did Simone stay awake?
Simone: 14 hours
500
Is 45 a multiple of 5? Why or why not?
Yes, because when we count by 5's we hear the number 45.