Adding Decimals
What is the most important step for adding decimals?
Aligning the decimals between the addends.
What is the most important part of subtracting decimals?
Aligning the minuend and subtrahend decimals.
True of false: Decimals must be aligned in order to mulitply
False
4.5 + 6 + 3.2 =
13.7
Solve
Green, Red, Orange, Sienna, Sienna
G.R.O.S.S
23,300+0.233=
23,300.233
45 - 4.5=
40.5
4.356 x 0.2=
0.8712
78 - 9.6 + 5.8
74.2
Games are Really fun. Especially when Anyone can play Tetris.
GREAT
87.59+63.45=
151.04
6.321 - 5.995 =
0.326
6.3 x 2.1 =
13.23
56 x 7.2 + 300=
703.2
Solve:
(345 x 567 x 93.827 + 4.99999) x 0=
0
There are 5 different distances that a paper airplane flew. The first attempt was 1.34 meters, the second attempt was 1.33 meters, the third attempt was 1.65 meters, the fourth attempt was 2.02 meters, and the final attempt was 0.565 meters. How far did the airplane travel in all attempts combined?
6.905 meters
An elephant eats exactly 65.49 kg of food per day. If the elephant begins the day with 72 kg of feed in his habitat, how much will be left at the end of the day?
6.51kg
3.11 x 0.978 =
3.04158
Mr. Mathis is attending a fundraiser where they are selling lunch plates to raise money. He estimates that there are roughly 1,000 people who came to buy lunch plates. If each plate costs $4.50, how much money is being raised? If it costs $0.99 to make each plate, how much money was raised after the expenses were accounted for?
$4,500 and $3,510
If a pencil has lead that it uses to write with, and a pen uses ink. What uses a mechanical pencil to write?
A hand
An inchworm is crawling up a hill. The hill is 16 feet high. Each day, the inchworm crawls 3.2 feet. How many days will it take for the inchworm to make it to the top of the hill?
5 days
Mrs. Land is buying supplies for the beep party. She has $30 to spend on supplies. If she buys $21.99 worth of popsicles, and $5.78 worth of water, how much will be left over to put towards the next beep part?
$2.23
$278.73
There is a truck load of kickballs that wrecked on the highway. The kickball company is trying to figure out how much money they lost due to the truck of kickballs being wrecked. There were 495 kickballs on the truck. If each kickball cost $0.98, how much was the truck load of kickballs worth? The truck was also worth $210,543.89 and the Trailer hauling the kickballs was worth $67,543.99. What is the total cost of the kickballs, the truck, and the trailer combined?
$278,572.98
In 1973 there was a concert in Red Rocks, Colorado. The concert hosted 56,034 people who painted the red rocks purple. The purple paint on the rocks was later combined with white and red paint from a festival in 1982. This created a pink color of paint on the rocks. The pink was then combined, in 1996 with blue paint. What was the color of the rocks after all of this had happened?
The rocks are red.