P – AS – OE15
Four different digits are used to make two 2-digit numbers. What is the difference between these two numbers?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?Page 117 of 139
