Convert 12 to tens and ones. \(12 \, = \, 1 \, \times \, 10 \, + \, 2\)

\(12 \, tens \, + \, 2 \, ones\)

\(1 \, ten \, + \, 12 \, ones\)

Convert 23 to tens and ones. \(23 \, = \, 2 \, \times \, 10 \, + \, 3\)

\(2 \, tens \, + \, 3 \, ones\)

\(2 \, tens \, + \, 23 \, ones\)

\(3 \, tens \, + \, 2 \, ones\)

\(23 \, tens \, + \, 3 \, ones\)

\(18 \, tens \, + \, 8 \, ones\)

\(1 \, ten \, + \, 18 \, ones\)

Number Properties, Addition

Grade 1 - Arithmetic: Understanding and writing numbers

Standard 1.ARTU.1.1.5 - Split the number into tens and ones to complete the equation.

Composes and decomposes a natural number in a variety of ways (e.g. 123 = 100 + 23, 123 = 100 + 20 + 3, 123 = 50 + 50 + 20 + 3)