Decimal Rounding
What is .4?
0.75_0.751
0.75<0.751
18.530+0.041
18.571
One brother says of his younger brother: “Two years ago, I was three times as old as my brother was. In three years time, I will be twice as old as my brother.” How old are they each now?
17 and 7
10.32-3.21
What is 7.11?
9.006 rounded to the nearest hundredth
What is 9.01?
0.981_1.345
0.981<1.345
4.518+0.1
4.618
I add six to eleven, and get five. Why is this correct?
Because this is the numbers on a clock.
0.35-0.3
What is 0.05?
0.56 rounded to the nearest whole
What is 1?
3.458_3.449
3.458>3.449
3+3.006
6.006
What single digit appears most frequently between and including the numbers 1 and 1,000? Hint: Look for a pattern!
The number 1.
4.3-4.11
What is 0.21?
3.4585 rounded to the nearest thousandth
What is 3.459?
5.14_5.150
5.14<5.150
0.814+12.134
12.948
There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What color are the stairs?
There aren’t any—it’s a one-story house.
3.9-2.8
What is 1.1?
0.00569 rounded to the nearest ten thousandth
What is 0.0057?
0.011_0.02
0.011<0.02
1.090+3.01
4.1
A man dies of old age on his 25 birthday. How is this possible?
He was born on February 29.
7.68-5.67
What is 2.01?