825,105 What place is the 5 in?
The THOUSANDS place
654
+176
830
What are the first five multiples of 5? Make sure to include 0 as a multiple.
0, 5, 10, 15, 20,
2,153,632 What place is the 1 in?
The HUNDRED THOUSANDS place
786
+432
1,218
Because I can only use two factors to get the product 31, which is 1x31. I can only use two factors to get the product 37, which is 1x37. The rest of the numbers I can use more than two factors to get the product.
Put in order from greatest to least.
87,215
872,159
92,999
872,159 > 92,999 > 87,215
What is the is the value of the digit 4 below?
4,215,266
four million
863
+790
1,653
Write the composite numbers that is larger than 20 and less than 30. Explain how you know.
21, 22, 24, 26, 27, 28 are the composite numbers between 20 and 30.
because to get the product 21 I can multiply 1x21 and 3x7.
To get the product 22 I can multiply 1x22 and 2x11
To get the product 24 I can multiply 1x24, 2x12, 3x8, and 4x6.
To get the product 27 I can multiply 1x27 and 3x9.
To get the product the product 28 I can multiply 1x28, 2x12, and 4x7.
Compare using inequality symbols (<, >, =) 60,000,000 + 40,000 ___ 6,400,000
60,040,000 > 6,400,000
163,243,513 What place is the 6 in?
The TEN MILLIONS place
4,321
- 179
4,142
Give an example of a prime number and an example of a composite number. Use words and drawings to explain how to tell the difference between a prime number and a composite number.
An example of a prime number is 2 because it has two factors 1x2. An example of a composite number is 4, because I can use the factors 1x4 and 2x2 to get the product 4.
Number Array
2 ** 1x2
4 **** 1x4 or 2x2 **
**
Which of the following comparisons is NOT correct?
108,614 < 118,460
414,038 < 403,418
914,603 > 914,306
131,860 > 131,680
414,038 < 403,418 is not correct, because 414,038 is greater than 403,418, so the problem should read 414,038 > 403,418
What is the value of the 7 in the number below?
700,000,000 (seven hundred million)
15,219
-12,973
2,246
Ten numbers are shown in the box.
Which list includes all the multiples of 4 that are shown in the box?
List 1: 8, 58, 80
List 2: 1, 2, 4, 20, 8, 58, 64,80
List 3: 4, 8, 20, 24, 36, 64, 80
List 4: 1, 8, 24, 64, 80
List 3 because it included all the numbers in the box that are multiples of 4: 4, 8, 20, 24, 36, 64, 80
4x1=4
4x2=8
4X5=20
4X6=24
4X9=36
4X16=64
4X20=80
Carlessia wrote the number 35,378. Jose wrote the number 48,721.
How many times greater is the 7 in Jose's number than the 7 in Carlessia's number? Use pictures, numbers, or words to demonstrate your reasoning.
700 is ten times more than 70, because you can multiply 70 x 10 to get the product 700.
A teacher asked her students to use estimation to decide if the sum of the problem below is closer to 7,000 or 8,000. 496 + 5,404 + 1,605 + 489 = Isaac thinks the sum is closer to 7,000. Maylin thinks the sum is closer to 8,000. Below is the reasoning that each student used to determine their answer. Isaac's reasoning:496 rounds to 0. 5,404 round to 5,000 1,605 rounds to 2,000 489 round to 0 So, 0+5,000+2,000+0=7,000 Maylin's reasoning: 496 rounds to 500 5,404 rounds to 5,000 1,605 rounds to 2,000 489 rounds to 500. So, 500+5,000+2,000+500= 8,000 Which student has the closest estimate and why? |
Maylin has the closest estimate because she rounded the numbers to a reasonable place. Isaac rounded 496 and 489 to 0, but he should have rounded them to the nearest hundred instead, so Maylin is correct.