P – AS – OE16
How does knowing what 9 + 4 equals help with solving 13 – 5?P – AS – OE1
The sum of two 2-digit numbers is a 3-digit number. What could the two 2-digit numbers be?P – AS – OE17
How does knowing what 6 + 6 equals help with solving 11 – 6?P – AS – OE2
The sum of one 2-digit number and one 1-digit number is a 2-digit number. What could the numbers be?Page 116 of 139
