Add and subrtract
What is 20+15?
35
If I have 4 tens and 9 ones, what number do I have?
49
What is 154+40?
194
545+455
1000
What is 47-12?
35
If I have 8 ones and 6 tens, what number do I have?
68
What is 120+69?
189
238+599
837
What is 25+10+7?
42
If I have 4 tens and 13 ones, What number do I have?
53
What is 238+52?
790
1,000-400
600
What is 50-15-5?
30
If I have 1 hundred, 13 tens and 3 ones, What number do I have?
233
What is 382+479?
861
1,000-325
675