Underwater Math: Understanding Addition and Subtraction Patterns

What is the cost of the eraser if Nathan paid 30 cents and received 3 cents in change?

• 33 cents

• 3 cents

• 27 cents

• 30 cents

If Peter paid 50 cents and got 23 cents back, how much did he actually pay for the eraser?

• 27 cents

• 23 cents

• 73 cents

• 50 cents

What conclusion can be drawn from the table regarding the cost of the eraser?

• The eraser costs 27 cents.

• The eraser costs 75 cents.

• The eraser costs 100 cents.

• The eraser costs 50 cents.