Rounding off
Round off to the nearest million
4,256,325
4,000,000
55 + 44 = 44 + 55
Which property does the above mathematical sentence show?
Commutative property of addition
(567 + 63) -175 ÷ 5
595
Total
Addition
In April Bob sold 245 shirts. In May he sold twice more than in April. In June he sold 150 shirts less than the total of shirts sold in April and May. How many shirts did Bob sell in June?
[245 + (245 ×2)] - 150
735
Round off to the nearest hundred thousand
2,276,228
2,300,000
23 x 69 = 69 x 23
Which property does the above mathematical sentence show?
Commutative property of multiplication
(125 –17) + 154 ÷ 14
119
Give
Subtraction
John collected 150 kg of green grapes and 270 kg of red grapes from his garden. Then he packed all of the fruit in boxes of 15 kg each. All of the grapes were sold at 750 dollars per box. What is the total amount of money collected after all the boxes of grape were sold?
[(150 + 270) ÷ 15] × 750
21,000
Round off to the nearest ten thousands
8,750,227
8,750,000
45 + (57 + 88) = (45 + 57) + 88
Which property does the above mathematical sentence show?
Associative property of addition
1,782 ÷ (59 - 53) + 783
1080
Share
division
Jane bought 8 similar shirts for $1,280 from a shop. Two days later, she went back to the shop to buy another 5 shirts that were similar. How much did she pay for all 5 shirts?
(1,280 ÷ 8) × 5
800
Round off to the nearest thousand
1,556,511
1,557,000
25 x (56 x 69) = (25 x 56) x 69
Which property does the above mathematical sentence show?
Associative property of multiplication
78 × 9 - (198 + 216)
288
Twice
multiplication
Marry sold 421 shirts at $250 each. She then uses the money to buy two laptops for $35,000 each. How much money is Mary left with?
(421 × 250) – (35,000 × 2)
35,250
Round off to the nearest hundred thousand
3,986,111
4,000,000
34 x (17 + 13) = (34 x 17) + (34 x 13)
Which property does the above mathematical sentence show?
Distributive property
5755 – 1350 ÷ (6772 – 6682)
5740
Each
multiplication/division
The entrance fee to a bird park is $200 for an adult and $170 for a student. Ms. Jenny brought 32 students and four other teachers to this bird park. How much was the entrance fee?
[200 × (4 + 1)] + (170 × 32)
6,440