Using Order and Grouping to Multiply

Front

What is the associative property of multiplication?

Back

The associative property of multiplication states that the way in which numbers are grouped in a multiplication problem does not change the product. For example, (a x b) x c = a x (b x c).

Front

How do you calculate the total number of items when given groups and items per group?

Back

To calculate the total number of items, multiply the number of groups by the number of items in each group. For example, if there are 4 groups with 10 items each, the total is 4 x 10 = 40.

Front

What is the commutative property of multiplication?

Back

The commutative property of multiplication states that the order in which two numbers are multiplied does not affect the product. For example, a x b = b x a.

Front

If a box contains 5 items and there are 3 boxes, how many items are there in total?

Back

To find the total number of items, multiply the number of boxes by the number of items per box: 3 boxes x 5 items/box = 15 items.

Front

What is the formula for finding the total number of objects in a multi-step problem?

Back

The formula involves multiplying the number of groups by the number of items in each group, and if there are additional layers (like items per item), you multiply those as well.

Front

How do you solve (4x2)x3?

Back

First, calculate 4x2 = 8, then multiply the result by 3: 8x3 = 24.

Front

What is the total number of grapes if there are 4 boxes, each with 2 bunches, and each bunch has 10 grapes?

Back

Total grapes = 4 boxes x 2 bunches/box x 10 grapes/bunch = 80 grapes.

Front

What is the total number of beads if there are 3 boxes of bracelets, each with 4 bracelets, and each bracelet has 2 beads?

Back

Total beads = 3 boxes x 4 bracelets/box x 2 beads/bracelet = 24 beads.

Front

How do you simplify the expression 7x2x2?

Back

Multiply the numbers together: 7x2 = 14, then 14x2 = 28.

Front

What is the significance of grouping in multiplication?

Back

Grouping in multiplication helps to organize calculations and can simplify the process, especially in multi-step problems.