Envision Topic 2 Review

Front

What is multiplication?

Back

Multiplication is a mathematical operation where a number is added to itself a certain number of times. For example, 3 multiplied by 4 (3 x 4) means adding 3 four times: 3 + 3 + 3 + 3 = 12.

Front

How do you find the total number of items in an array?

Back

To find the total number of items in an array, multiply the number of rows by the number of columns. For example, an array with 2 rows and 5 columns has 2 x 5 = 10 items.

Front

What is an array in mathematics?

Back

An array is a way to organize objects in rows and columns. It helps in visualizing multiplication and understanding how many items are in total.

Front

If there are 9 rows of fish bowls with 6 fish in each bowl, how many fish are there total?

Back

54 fish (9 rows x 6 fish per row = 54 fish).

Front

Logan has 4 types of blocks with 10 of each type. How many blocks does he have?

Back

40 blocks (4 types x 10 blocks each = 40 blocks).

Front

What is the formula to calculate the total number of items in equal groups?

Back

The formula is: Total items = Number of groups x Number of items in each group.

Front

If Ava has 4 birdcages with 5 birds in each, how many birds does she have?

Back

20 birds (4 cages x 5 birds each = 20 birds).

Front

Ava buys another birdcage with the same number of birds. How many birds does she have now?

Back

25 birds (20 birds from the first 4 cages + 5 birds in the new cage = 25 birds).

Front

What is the total number of pencils Aden has if he has 5 packages with 10 pencils each?

Back

50 pencils (5 packages x 10 pencils each = 50 pencils).

Front

Is it reasonable to say that an array with 2 rows and 5 columns has 8 items? Why or why not?

Back

No, it is not reasonable because 2 x 5 equals 10, not 8.