Convert 13 to tens and ones. \(13 \, = \, 1 \, \times \, 10 \, + \, 3\)

\(13 \, tens \, + \, 3 \, ones\)

\(1 \, ten \, + \, 13 \, ones\)

Convert 24 to tens and ones. \(24 \, = \, 2 \, \times \, 10 \, + \, 4\)

\(2 \, tens \, + \, 4 \, ones\)

\(24 \, tens \, + \, 4 \, ones\)

\(2 \, tens \, + \, 24 \, ones\)

\(2 \, tens \, + \, 4 \, ones\)

\(4 \, tens \, + \, 2 \, ones\)

Convert 28 to tens and ones. \(28 \, = \, 2 \, \times \, 10 \, + \, 8\)

\(2 \, tens \, + \, 8 \, ones\)

\(8 \, tens \, + \, 2 \, ones\)

\(2 \, tens \, + \, 28 \, ones\)

\(28 \, tens \, + \, 8 \, ones\)

\(2 \, tens \, + \, 8 \, ones\)

Convert Numbers to Tens and Ones Up to 99 - Grade 1

Number Properties, Addition

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Kentucky Mathematics Curriculum

Grade 1 - Number and Operations in Base Ten

Standard 1.NBT.4 - Split the number into tens and ones to complete the equation.

Included Skills: Number Properties, Addition

Add within 100, including adding a two-digit number and a one-digit number, and adding a two-digit number and a multiple of 10, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.