Number Forms
Write this number in expanded form:
125.309
100+20+5+.3+.09
2.3-1.1
1.2
.39+1.5
1.89
Round to the nearest tenth:
1,536.2356
1,536.2
Use the associative property to add the following numbers. Use words to explain how the associative property helps you add mentally.
4.42 + 1.3 + 6.7
Adding up 1.3+6.7 I know that the decimals will equal 1 whole, then it is easier to add that to 4.42:
12.42
Write this number in word form:
63.63
sixty-three and sixty three hundredths
5.9-3.8
2.1
2.09+6.99
9.08
Round to the nearest ones:
532.9568
533
Ethan's drone can go up to a maximum height of 20.75 meters before it loses communication with the person operating it. With an extension pack, though, it can reach an additional 5.5 meters of height. How high can the drone go?
26.25 meters
Write this number in Powers of 10:
9,852.652
(9*1,000)+(8*100)+(5*10)+(2*1)+(6*.1)+(5*.01)+(2*.001)
17.36-16.89
.47
52.06+629.59
681.65
Round to the nearest hundredth:
459.2356
459.24
The distance around the park is 409.76 meters. Nikki runs around the park twice to catch her dog. How many meters does she run?
819.52 meters
What type of number form is this?
(7*1,000)+(2*100)+(6*.1)
Powers of 10
100.56-62.089
38.471
24+.568+305.13
329.698
Round to the nearest thousandth:
84,567.25999
84,567.260
At Keli’s school, the two fastest runners in the 100-yard dash had race times of 13.29 seconds and 12.99 seconds. Estimate then find how much faster the first place runner was than the second place runner.
13.3-13= .3 seconds faster
Write this number in standard form:
sixteen thousand four hundred and twenty two hundredths
16,400.22
846.268-26.596-106.339
713.333
2,560.369+12.798+952.3111
3,525.4781
Round to the nearest thousandth:
525,600.05210
565,600.000
At the Wicked: For Good screening, Mrs. McHugh ordered a hot dog for $1.50, a water for $1, a small bag of pretzel sticks for $2, and a slushee for $1.25. She gave the cashier $5 and said to keep the $0.52 change as a tip. How much did she think her total was?
4.48