Level 2
10.54/2
5.27
1.4222/0.2
7.111
A student Divided 15.255 by 0.5 and got 3.051. What happen
Forgot to move over the decimal from the divisor.
2.2(3.2)
7.04
10.2452(10)
102.452
100.84/4
25.21
98.642/2
49.321
A student divided 42.862 by 2 and got 21.421. What happen?
They divided incorrectly for the hundredths place. The answer should be 21.431
18.1(0.3)
5.43
52.32(0.3)
15.696
56.265/0.5
112.53
87.783/3
29.261
A student multiplied 0.5 times 1.2 and got 6. What happen?
They forgot to move the decimal and the answer is 0.6
82.46(5)
412.3
8.7(6.45)
56.115
8765.542/0.2
43827.71
5.4888/0.2
27.444
They forgot to put zeros into equation for place values. The answer is 49.4.
97.64(7)
683.48
1.2(1.22)
1.464
903.24/1.2
752.7
25.252525/0.005
5050.505
List the Steps for multiplication and division of decimals.
Multiplication:
1) multiply like normal
2) count numbers behind decimals and add them together.
3) mover decimal left the amount of times in answer from step 2.
Division:
1) Make sure divisor is a whole number by moving decimal right in divisor and dividend.
2) Divide like normal.
97.654(10)
976.54
100.00005(100)
10000.005