Add/Subtract
128 + 54 = ?
182
Round to the nearest ten: 52
50
What place is the digit 3 in? 132
tens (30)
Read the scale. How much does the object weigh?
*Slide 1
55 kg
A notebook costs $128 and a pencil case costs $54. How much do both items cost together?
128 + 54
$182
328 + 239 = ?
567
Round to the nearest ten: 78
80
What place is the digit 5 in? 526
hundreds (500)
Read the scale. How much does the object weigh?
*Slide 2
367g
A fish tank holds 367 liters of water. A pump removes 40 liters. What is the new amount of water in the tank?
367-40
327 liters
428 − 169 = ?
259
Round to the nearest hundred: 204
200
What does the digit 9 represent in the number 39?
9 ones
Write the missing number
22, 24, 26, _, 30
28
Rosa read 537 pages this month and 489 pages last month. How pages did she read altogether?
537 + 489
1,026 pages
700 − 358 = ?
342
Round to the nearest hundred: 362
400
Write in standard form:
400 + 90 + 4 = ?
494
Pablo wants to estimate 437 − 279. Should Pablo round both numbers to the nearest ten or to the nearest hundred?
nearest ten
Marco has 150 toy cars. He buys 238 more cars and then gives 95 cars to his friend. How many cars does Marco have now?
150 + 238=388, THEN 388 -95
293 cars
537 − 489 = ?
48
Round to the nearest hundred: 154
200
Write in expanded form:
186
100 + 80 + 6
<, >, or =
359 _ 395
359 < 395
Sally had 405 stickers. She bought 162 more stickers and then gave 78 stickers to her classmates. How many stickers does Sofia have now?
405 + 162= 567 , THEN 567- 78
489 stickers