VBA 1 Review

Which expression can you use to find the total number of dots?

• 8x6

• 6x8

• 8+6

• 7+8

Answer explanation

To find the total number of dots, you multiply the number of rows (8) by the number of columns (6). Thus, the correct expression is 8x6, which gives the total count of dots.

Tags

CCSS.3.OA.A.3

Write three thousand four hundred fifty-two in standard form.

Answer explanation

Three thousand, four hundred fifty-two is written as 3,452 in standard form, which includes a comma for clarity. The option 3452 is also correct but lacks the comma.

Tags

CCSS.4.NBT.A.2

345 rounded to the nearest hundred is 400.

• True

• False

Answer explanation

345 rounded to the nearest hundred is 300, not 400. Since 345 is closer to 300 than to 400, the statement is false.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

958 rounded to the nearest ten is 960.

• True

• False

Answer explanation

To round 958 to the nearest ten, look at the digit in the ones place (8). Since 8 is 5 or greater, we round up, making it 960. Therefore, the statement is true.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Select the standard form of the number 45 hundreds + 19 ones.

• 4,519

• 469

• 5,690

• 419

Answer explanation

To find the standard form, calculate 45 hundreds (4500) plus 19 ones (19). Adding these gives 4500 + 19 = 4519, which is represented as 4,519 in standard form. Thus, the correct answer is 4,519.

Tags

CCSS.4.NBT.A.2

Select all the statements that can be represented by this array.

• 5 × 4

• 5 + 4

• 20 ÷ 5

• 20 ÷ 4

Answer explanation

The array can represent multiplication (5x4=20) and division (20➗5=4, 20➗4=5). However, it cannot represent addition (5+4). Thus, the correct statements are 5x4, 20➗5, and 20➗4.

Tags

CCSS.2.OA.C.4

Mrs. Cohen scored 2,953 points in the first round of a video game and 3,415 points in the second round. Mrs. Donald scored 9,459 points. How many more points did Mrs. Donald score than Mrs. Cohen?

• 3,091

• 6,368

• 15,827

Answer explanation

Mrs. Cohen's total score is 2,953 + 3,415 = 6,368. Ms. Donald scored 9,459 points. The difference is 9,459 - 6,368 = 3,091. Therefore, Ms. Donald scored 3,091 more points than Mrs. Cohen.

Tags

CCSS.4.OA.A.3

Compare these numbers:

4,495 ___ 5,895

• 4,495 > 5,895

• 4,495 < 5,895

• 4,495 = 5,895

Answer explanation

To compare 4,495 and 5,895, we see that 4,495 is less than 5,895. Therefore, the correct choice is 4,495<5,895.

Tags

CCSS.4.NBT.A.2

Write an expression for this array.

Answer explanation

The expression for the array is not provided in the answer choices. The correct answer is 0, indicating that there is no valid expression for the given array dimensions of 3x4.

Tags

CCSS.3.OA.A.1

In what form is this number written?

3000 + 800 + 20 + 1

• expanded form

• word form

• standard form

Answer explanation

The number 3000+800+20+1 is written in expanded form, which breaks down the number into the sum of its place values. This is different from word form, which would spell out the number, or standard form, which is the number itself.

Tags

CCSS.4.NBT.A.2