Addition
345 + 239
584
450 - 234
216
What is the value of 6 in 2,687
600
Round 43 to the nearest ten
40
Katie spent a total $350 on her holiday. If she spent $125 on food and $135 on hotel rooms, how much did she spend on buying other stuff?
First, 125 + 135 = 260; then, 350 – 260 = 90 She spent $90 on buying other stuff.
6,987+799
7,786
75,006 - 5,687
69,319
What is the place of 6 in 16,459
ten thousandth
Round 139 to the nearest 100
100
Laila's neighbors wanted to welcome them in the building, so they brought in some food. If one neighbor brought 75 hotdogs and another neighbor brought 25 less hotdogs than the first one, how many hotdogs were brought by the neighbors in total?
First, 75 – 25 = 50; then, 75 + 50 = 125 The neighbors brought a total of 125 hotdogs.
20,993+5,236
26,229
500,000 - 65,568
434,432
Which number is even?
2,041 7,330
7,330
Estimate the sum.
1,250 + 4,744
6,000
The library is being relocated. The librarians are busy organizing the books. 1. Three boxes filled with fiction books and two boxes filled with reference books were just delivered. If each box is filled with 120 books, how many fiction books are there?
120 + 120 + 120 = 360 There are 360 fiction books.
985.32 + 521.15
1,506.47
556.89 - 325.17
231.72
Count in 100s
4,832 , 2,932, _____, ______, _______, 3,332.
3,032,
3,132,
3,232
Estimate the Difference
697,785 - 125,487
600,000
There were 445 non-fiction books but 83 went missing and 45 were transferred to another library. How many non-fiction books are left?
445 – 83 – 45 = 317 There are 317 non-fiction books left.
998.67 + 456.88
1,455.55
8,100.32 - 523.55
7,576.77
The answer to subtraction equation is called the....
difference
About how much money should I give Adam as pocket money on the trip if he wishes to buy the following items:
Key Chain $4.87
T- Shirt $45.30
Book $14.87
$65
There are 2,475 books in total in the library. 592 books are on loan and 137 books are missing. Out of the 592 books, 74 books are late. How many books are there in the library?
2,475 – 592 – 137 = 1,746 There are 1,746 books in the library.