hundreds tens units (h) (t) (u) - primary resources · microsoft word - abacus author: morag watson...
TRANSCRIPT
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Hundreds
(H)
Tens
(T)
Units
(U)
100 10 1
1
1
1
1 10
10
10
10
100
100
100
100
100 10 1
1
1
1
1 10
10
10
10
100
100
100
100
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Hundreds
(H)
Tens
(T)
Units
(U)
1
1
1
1
1
1
1
1
1
1
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Hundreds
(H)
Tens
(T)
Units
(U)
10
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Hundreds
(H)
Tens
(T)
Units
(U)
10
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Hundreds
(H)
Tens
(T)
Units
(U)
100
Hundreds
H
Tens
T
Units
U
0 0 1
(A) 1 unit in the units’ column.
1 x 1 = 1
Hundreds
H
Tens
T
Units
U
0 0 9+1
(B) 10 units don’t fit in the units’ column.
Hundreds
H
Tens
T
Units
U
0 1 0
(C) 10 units have to be exchanged for 1 ten.
10 x 1 = 1 x 10 = 10 The 1 moved one
place to the left.
Hundreds
H
Tens
T
Units
U
0 1 0
(D) 1 ten in the tens’ column.
1 x 10 = 10
Hundreds
H
Tens
T
Units
U
0 9+1 0
(E) 10 tens don’t fit in the tens’ column.
Hundreds
H
Tens
T
Units
U
1 0 0
(F) 10 tens have to be exchanged for 1 hundred.
10 x 10 = 1 x 100 = 100 The 1 moved one
place to the left.
Units
H
Tenths
t
Hundredths
h
0 0 1
(A) 1 hundredth in the hundredths’ column.
Units
H
Tenths
t
Hundredths
h
0 0 9+1
(B) 10 hundredths don’t fit in the hundredths’ column.
Units
H
Tenths
t
Hundredths
h
0 1 0
(C) 10 hundredths have to be exchanged for 1 tenth.
The 1 moved one place to the left.
Units
H
Tenths
t
Hundredths
h
0 1 0
(D) 1 tenth in the tenths’ column.
Units
H
Tenths
t
Hundredths
h
0 9+1 0
(E) 10 tenths don’t fit in the tenths’ column.
Units
H
Tenths
t
Hundredths
h
1 0 0
(F) 10 tenths have to be exchanged for 1 unit.
The 1 moved one place to the left.
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Units
(U)
Tenths
(t)
Hundredths
(h)
1.0 0.1 0.01
0.01
0.01
0.01
0.01 0.1
0.1
0.1
0.1
1.0
1.0
1.0
1.0
1.0 0.1 0.01
0.01
0.01
0.01
0.01 0.1
0.1
0.1
0.1
1.0
1.0
1.0
1.0
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Units
(U)
Tenths
(t)
Hundredths
(h)
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
0.01
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Units
(U)
Tenths
(t)
Hundredths
(h)
0.1
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1
Units
(U)
Tenths
(t)
Hundredths
(h)
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
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1
Units
(U)
Tenths
(t)
Hundredths
(h)
1.0