2. Subtract within 20 by subtracting in parts.
+ video LZ2596
3. Subtract by by decomposing 100s to make 10s.
Videos:
LZ1582 (word problems)
LZ1583 (distance on a number line “hops”)
LZ11 (subtraction with regrouping)
2. Subtract within 20 by subtracting in parts.
+ video LZ2596
3. Subtract by by decomposing 100s to make 10s.
Videos:
LZ1582 (word problems)
LZ1583 (distance on a number line “hops”)
LZ11 (subtraction with regrouping)