Addition
Subtraction
Multiply
Dividing by powers of 10
Multiplying by Powers of 10
100
53.86 + 7.47 =
What is 61.33
100
8,795.35 - 800 =
What is 7,995.35
100
2.8 X 3 =
What is 8.4
100
2.4 / 100
0.024
100
240 x 0.01
2.4
200
Telly wants to buy a packet of markers for $4.54 and poster board for $0.99. How much will this cost?
$5.53
200
941.8 - 7.35 =
What is 934.45
200
6.5 X 5 =
What is 32.5
200
0.9 / 0.1
9
200
14.5 x 100
1450
300
0.593 + 0.284 =
What is 0.877
300
5.369 - 2.256 =
What is 3.113
300
Sue bought four binders at $4.95. Gary bought three binders at $7.50. Did Sue or Gary spend more money? How much more?
What is Gary spent $2.70 more than Sue
300
18.3/100
0.183
300
5.67 x 0.001
0.00567
400
7,852.45 + 953.6 =
What is 8,806.05
400
14 - 6.8 =
What is 7.2
400
12.3 X 2.9 =
What is 35.67
400
450/100
4.5
400
1.256 x 1000
1256
500
6,987.2 + 3,214.8 =
What is 10,202
500
Gus earned $16.90 washing his dads car, $3.89 washing the dishes and $5.25 babysitting. After he bought a new CD for $10.56 how much money did he have?
What is $15.48.
500
4.9 X 1.63 =7987 Where does the decimal point go in the answer? What are 2 ways you can tell?
7.987 counting method and estimation
500
2356 / 0.01
235600
500
34.6 x 0.1
3.46