A small lesson.
A clearer next step.

A calculator helps with arithmetic. You still choose the operation and check whether the answer makes sense.

The GED® math test has a calculator part and a no calculator part. Check the official test guide for the current rules.

The allowed calculator is the Texas Instruments thirty X S MultiView. Use the official free tutorial to practice its actual buttons.

Here is an order of operations example: three plus four times two. Multiplication comes first. Four times two is eight; add three to get eleven.

If you mean three plus four, all multiplied by two, put parentheses around three plus four. Now seven times two gives fourteen.

For a negative number, distinguish the negative sign key from the subtraction key. Read the whole expression before pressing enter.

Estimate first. Then calculate, read the display, and check the units. Open the official calculator tutorial before test day.