Rounding
What is 24 rounded to the nearest 10?
20
548 + 243 =
791
552 - 170 =
382
A student desk weighs 12 kilograms or grams?
kilograms
A shark weighs 286 kilograms more than an octopus. The shark weighs 315 kilograms.
How much does the octopus weigh?
29 kilograms
What is 784 rounded to the nearest hundred?
800
452+396
848
400 - 258
142
A pair of scissors weighs about 3 or 30 grams?
30 grams
A bear weighs 147 kilograms more than a kangaroo. The bear weighs 204 kilograms.
How much does the kangaroo weigh?
57 kilograms
What is 792 rounded to the nearest hundred AND 10?
800 / 790
548+274
822
813-547
266
A notebook weighs 300 or 30 grams?
300 grams
One bag of pringles weighs 555 grams. The other bag of goldfish weighs 496 grams. How much do both bags weigh together?
1051 grams.
Mia wants to estimate 326−278.
Should Mia round both numbers to the nearest ten or to the nearest hundred? EXPLAIN!
Nearest 10, nearest 100 would be too big of a difference.
496+348
844
906-284
622
Your chromebook weighs about 2 or 20 kilograms?
2 kilograms
The school library had 368 fiction books and then received a donation of 487 more fiction books.
How many fiction books does the library have now?
855
Create TWO 3 digit numbers that round to the same hundred.
For example:
528 - rounds to 500
496 - rounds to 500
199+288
487
408-169
239
A kitchen sink has a capacity of about 40 or 400 liters?
40 liters
Charlie's class collected 236 cans for a food drive. Another class brought in 189 more cans.
After counting all the cans, they delivered 307 cans to the food pantry.
How many cans do they still have left at school?
118 cans left