Subtract Across Zeroes
100 - 62 = ?
38
91 x 10
910
Estimate 529 + 392 to the nearest hundred.
900
(500 + 400)
Maccabee builds a new Lego structure using 91 Legos. Then he adds on another tower with 22 more Legos. He isn't happy with the tower, so he takes off 13 Legos. How many Legos is the tower made of in the end?
100 Legos.
134
100 + 30 + 4
1,000 - 346 = ?
654
26 x 100
2,600
Estimate 1,143 - 521 to the nearest hundred.
600
(1,100 - 500)
Adena adds 186 words to her story. Later, she goes back to edit the story and removes 31 words. After that, she adds 42 more words. How many words were added to her story today in total?
197 words.
610
600 + 10
10,000 - 7,429 = ?
2,571
30 x 100
3,000
Estimate 14,923 + 8,976 to the nearest thousand.
24,000
(15,000 + 9,000)
There are 209 hay pellets in a ziploc bag. Adena feeds 89 of these pellets to the guinea pigs. Later, she finds 57 pellets remaining in the cage and adds them back to the ziploc bag. How many pellets are in the bag now?
177 hay pellets.
3,901
3,000 + 900 + 1
100,000 - 42,394 = ?
57,606
42 x 200
8,400
Estimate 26,871 - 13,281 to the nearest thousand.
14,000
(27,000 - 13,000)
There are 1,429 pieces of paper in a pile on Adena's desk. After a shopping trip to Staples, Adena adds 921 pieces of paper to this pile. Over the course of the week, she uses 647 pieces of paper from the pile. How many pieces of paper are left in the pile when the weekend comes?
1,703 pieces of paper.
14,352
10,000 + 4,000 + 300 + 50 + 2
250,000 - 104,281 = ?
145,719
80 x 500
40,000
Estimate 138,356 + 89,726 to the nearest ten thousand.
230,000
(140,000 + 90,000)
Ms. Bennett saves $1,781 for buying ping pong balls for Soji the cat. Ms. Bennett then has to spend $596 on other things. After that, she is able to save $254 more. How many dollars does Ms. Bennett have saved for ping pong balls?
$1,439
20,741
20,000 + 700 + 40 + 1