10 100 1000 Flashcards
Multiply and vidive numbers by powers of ten
Calculate:
a) 0.8 · 100 =
b) 142 : 1000 =
c) 10 · 0.0015 · 10 =
a) 0.8 · 100 = 80
b) 142 : 1000 = 0.142
c) 10 · 0.0015 · 10 = 0.15
Calculate
a) 0.1 · 0.2 =
b) 60 · 0.01 =
c) 400 : 0.1 =
a) 0.1 · 0.2 = 0.02
b) 60 · 0.01 = 0.6
c) 400 : 0.1 = 4000
Find the missing number
a) 100 · p = 10’000 p=?
b) 34 : e = 0.034 e=?
c) n · 0.456 = 45.6 n=?
a) 100 · p = 10’000 p = 100
b) 34 : e = 0.034 e = 1000
c) n · 0.456 = 45.6 n=100
Complete the sentence
When dividing by 100, the comma (or the decimal point) moves to the ______ by ___ positions
When dividing by 100, the comma (or the decimal point) moves to the LEFT by 2 positions
Complete this sentence
When multiplying by 1000, the comma (or the decimal point) moves to the _____ by ___ positions
When multiplying by 1000, the comma (or the decimal point) moves to the RIGHT by 3 positions
Complete this sentence
When multiplying by 0.1, the comma (or the decimal point) moves to the _____ by ___ positions
When multiplying by 0.1, the comma (or the decimal point) moves to the LEFT by 1 position
Complete this sentence
When dividing by 0.01, the comma (or the decimal point) moves to the _____ by ___ positions
When dividing by 0.01, the comma (or the decimal point) moves to the RIGHT by 2 positions
Find the missing number
x · x = 10’000
x = 100
Find the missing number
0.001 : x = 1
x = 0.001
Suppose that the numebr a is not zero and calculate if possible the value of this expression:
a · a : a = ?
The result must be equal to a:
a · a : a = a