Question

amari correctly solved the problem below.
15 - 6 = 9
use the tiles to create a number sentence that amari could use to check to see if the answer is correct.
tiles with numbers 6, 9, 15 and a + sign are shown

Explanation:

Step1: Recall subtraction check rule

To check a subtraction like \( a - b = c \), we use \( b + c = a \). Here, \( a = 15 \), \( b = 6 \), \( c = 9 \).

Step2: Form the addition sentence

Using the rule, the number sentence is \( 6 + 9 = 15 \) (or \( 9 + 6 = 15 \)).

Answer:

\( 6 + 9 = 15 \) (or \( 9 + 6 = 15 \))