Borrowing from the tens: Now, remember, that's really 70 = 60 + 10! Remember the big key: A 1 in the tens stripe is 10... and that's the same as 10 ones! Now, add the 10 and the 5 in the ones stripe: See if you can finish it, then go to the next page to see how you did! Previous continue 1 2 3 4 5 6 of 6
