Adding Decimals
43.14 + 5.12 =
What is 48.26?
$43.28 + 31.45
What is $74.73
Use front-end estimation to estimate the sum.
2.1 + 4.2 + 1.9
About 7
$114.73 + 68.1=
What is $182.83?
0.724 + 6.458
What is 7.182
Use front-end estimation to estimate the sum.
$12.75 + 26.23 + 35.43
About $60
3.529 + 1822.55=
What is 1826.079?
1.325 + 0.081
What is 1.406
Use rounding to estimate the sum.
13.2 + 1.7 + 8.9
About 24
88,888.888 + 123.456 =
What is 89,012.344?
43.234+12.953=
56.187
Use rounding to estimate the sum.
5.41 + 2.80 + 0.14
About 8.3
Manaus, Brazil is a city on the edge of the Amazon Rainforest. On average, the city of Manaus receives 6.3 cm of rain in September. In October, the rainfall average increased by 4.81 cm. What is the total average rainfall for both months in Manaus?
The total average rainfall is 17.41 cm.
The silver medalist scored 0.567 points higher than the bronze medalist. The gold medalist scored 0.466 points higher than the silver medalist. The bronze medalist scored 14.933 points. How many points did the silver and gold medalists score?
The silver medalist scored 15.500 points and the gold medalist scored 15.966 points.
Giant kelp seaweed can grow 1.85 feet each day. About how long could a kelp that is 39.7 feet long be 3 days later?
The kelp would be about 46 feet. (rounding)
The kelp would be about 33 feet. (front-end estimate)