23 is 2 tens plus 3 ones. Select another way to make 23. \(23 \, = \, 2 \, \times \, 10 \, + \, 3\)

\(1 \, tens \, plus \, 13 \, ones\)

\(13 \, tens \, plus \, 1 \, ones\)

\(1 \, tens \, plus \, 13 \, ones\)

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

\(3 \, tens \, plus \, 3 \, ones\)

25 is 2 tens plus 5 ones. Select another way to make 25. \(25 \, = \, 2 \, \times \, 10 \, + \, 5\)

\(1 \, tens \, plus \, 15 \, ones\)

\(3 \, tens \, plus \, 5 \, ones\)

\(5 \, tens \, plus \, 2 \, ones\)

\(15 \, tens \, plus \, 1 \, ones\)

28 is 2 tens plus 8 ones. Select another way to make 28. \(28 \, = \, 2 \, \times \, 10 \, + \, 8\)

\(1 \, tens \, plus \, 18 \, ones\)

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

\(3 \, tens \, plus \, 8 \, ones\)

\(1 \, tens \, plus \, 18 \, ones\)

\(18 \, tens \, plus \, 1 \, ones\)

Regrouping Tens and Ones II - Grade 2 - Practice with Math Games

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Grade 2 - Number

Standard 2.N.1.1 - Make a specific number by regrouping tens and ones.

Included Skills:

number concepts to 100
• counting:
- skip-counting by 2, 5, and 10:
- using different starting points
- increasing and decreasing (forward and backward)
• Quantities to 100 can be arranged and recognized:
- comparing and ordering numbers to 100
- benchmarks of 25, 50, and 100
- place value:
- understanding of 10s and 1s
- understanding the relationship between digit places and their value, to 99 (e.g., the digit 4 in 49 has the value of 40)
- decomposing two-digit numbers into 10s and 1s
• even and odd numbers

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