Subtracting
Start with the number 340.
Subtract 3 from the "tens" column.
What is the new number?
310
Start with the number 254. Add 3 to the "hundreds" column.
What is the new number?
554
What is 34 + 20?
54
Mary had 30 popsicles, and she bought a pack with 10 more. How many does she have now?
40
Start with the number 532.
Subtract 4 from the "hundreds" column.
What is the new number?
132
Start with the number 435.
Add 4 to the "tens" column.
What is the new number?
475
What is 45 - 30?
15
Johnny had 25 stamps. He went back to the store 4 more times and bought a single stamp each time. How many stamps does he have now?
29
Start with the number 492.
Subtract 80.
What is the new number?
Hint - think about what column 8 goes into to make 80.
412
Add 40 to 352. What is the new number?
Hint - think about what column 4 goes into to make 40
392
What is 54 - 21?
33
Beth has 10 pokemon cards. She bought 2 packs with ten cards in each pack and 3 packs with 5 cards in each pack.
How many cards does she have now?
Start with the number 453.
Subtract 3 from the "tens" column and 2 from the "ones" column.
What is the new number?
421
Start with the number 431.
Add 3 to the "tens" column and 2 to the "ones" column.
What is the new number?
463
What is 125 - 50?
75
Ryan has 120 marbles. He bought 1 more set of ten marbles and Blake gave him 3 extra marbles.
How many total marbles does Ryan have now?
133 marbles
Start with the number 642.
Subtract 2 from the "ones" column, 3 from the "tens" column, and 1 from the "hundreds" column.
What is the new number?
510
Start with the number 624.
Add 2 to the "ones" column, 3 to the "tens" column, and 1 to the "hundreds column"
What is the new number?
756
What is 130 + 30?
160
Ben has 300 baseball cards. He bought another set of 200 cards. He then gave away 30 cards.
How many cards does he have?
470 cards