47 is 4 tens plus 7 ones. Which is another way to make 47? \(10 \, \times \, 4 \, + \, 7 \, = \, 47\)

\(2 \, tens \, plus \, 27 \, ones\)

\(5 \, tens \, plus \, 7 \, ones\)

\(2 \, tens \, plus \, 27 \, ones\)

\(27 \, tens \, plus \, 2 \, ones\)

\(7 \, tens \, plus \, 4 \, ones\)

49 is 4 tens plus 9 ones. Which is another way to make 49? \(10 \, \times \, 4 \, + \, 9 \, = \, 49\)

\(2 \, tens \, plus \, 29 \, ones\)

\(9 \, tens \, plus \, 4 \, ones\)

\(5 \, tens \, plus \, 9 \, ones\)

\(29 \, tens \, plus \, 2 \, ones\)

57 is 5 tens plus 7 ones. Which is another way to make 57? \(10 \, \times \, 5 \, + \, 7 \, = \, 57\)

\(1 \, ten \, plus \, 47 \, ones\)

\(6 \, tens \, plus \, 7 \, ones\)

\(47 \, tens \, plus \, 1 \, one\)

\(1 \, ten \, plus \, 47 \, ones\)

\(7 \, tens \, plus \, 5 \, ones\)

Adding Tens and Ones - Grade 2 - Practice with Math Games

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Grade 2 - Number

Standard 2.N.1.1 - Understand the place values of tens and ones. Convert numbers into tens and ones to solve.

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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