Add Across a Ten - Practice 1

5 questions0m 0s

Learn the skill

Add the ones first. Exchange ten ones for one ten when needed. Combine the tens, including any new ten.

Worked example

28 + 15: 8 + 5 = 13 ones. That is 1 ten and 3 ones; the total is 43.

Question 1 The art box holds 28 cards. Add 15 cards. How many now? Answer

Question 2 The book cart holds 38 cards. Add 15 cards. How many now? Answer

Question 3 The supply shelf holds 48 cards. Add 15 cards. How many now? Answer

Question 4 The puzzle table holds 58 cards. Add 15 cards. How many now? Answer

Question 5 The display stand holds 68 cards. Add 15 cards. How many now? Answer