To add by counting on.
Partitioning to create number bonds.
Subtraction: count back and take away.
To add by counting on (numbers to 20).
To learn number bonds to 10.
To say one more or one less up to 100.
To learn number bonds to 8 and 9; doubles.
To use facts and doubles to add 3 numbers.
To find 10 more or less than a 2-digit number.
To relate adding and subtracting using facts.
To add and subtract 10, 20, 30.
To add 10s and near 10s to a 2-digit number.
To subtract 10s and near 10s from 2-digit numbers.
To add and subtract 10, 11, 12.
To learn number bonds to 10; add to next 10.
To add by bridging 10 using number bonds.
To bridge 10 to subtract with number bonds.
To use number facts to add and subtract money.
Patterns to add and subtract 1-digit numbers.
Patterns to add 1-digit to 2-digit numbers.