When ordering objects from smallest to largest, you need to compare the numbers. The smallest number will be the smallest object. In this case, the number is smaller than and so the table is the smallest object. The number is smaller than , so the couch is the next object. The number is the biggest number, so the room is the largest object.

A die is a good example of a shape with faces. Think about what a die looks like. There are faces because a die has numbers on each face.

A cube has faces.

To solve this problem we will subtract because David is taking away apples.

We can start at and count back .

First, determine what the pattern is in the series. The pattern here is to multiply the previous number by 2 and then add 1. Therefore, multiply 47 by 2 (which is 94), and then add 1. The result is 95.

To solve, you will need to divide both sides of the equation by 5.

The 5 cancels on the left side.

Divide to simplify.

Sometimes we use letters instead of numbers if we don't know what number ought to go in a certain place. Saying "" means that something plus eight equals fifteen, but we aren't yet certain what that "something" is. When we can, we solve the puzzle of what number that letter could be replaced with.

. , so must be replaced by .

. , so must be replaced by also.

We're looking for . To find this, we replace the letters with the numbers we found. and both equal , so .

, so . The correct answer is .

Replace the variable with . Then solve using order of operation (PEMDAS).

A die is a good example of a shape with faces. Think about what a die looks like. There are faces because a die has numbers on each face.

A cube has faces.

When ordering objects from smallest to largest, you need to compare the numbers. The smallest number will be the smallest object. In this case, the number is smaller than and so the table is the smallest object. The number is smaller than , so the couch is the next object. The number is the biggest number, so the room is the largest object.

We are told that the toy panda weighs pounds less than the toy truck, which means we are going to subtract.

We are given that the toy truck weighs pounds, so we subtract from since the panda weighs pounds less than the toy truck.

is the correct number sentence.