Add and subtract within 100 using compose, decompose, and place value strategies. Engage with a number talk to sum near-doubles using compensation. Add and subtract within 100 in more than one way.

Place value describes the position of a digit in a number. It also gives the value of each digit in a number. Hundred squares, number lines, bundles of straws and tens and ones blocks can be really ...

Place value describes the position of a digit in a number. It also gives the value of each digit in a number. Hundred squares, number lines, bundles of straws and tens and ones blocks can be really ...