Page 41 - NUMINO TB_4B
P. 41
065_G4U20_G5U17˙—» ¿º 2011.3.23 5:10 PM ˘ ` 30 PDF_In 2540DPI 150LPI T
UNIT
20 Which Difference Is Larger?
Find the difference of 0.9 and 0.3 using a model. Colored Pencils
What you need:
Color the columns to show 0.9.
Cross out the colored columns to
subtract 0.3.
How many colored columns are left?
0.9 0.3
Use number lines to find the difference.
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
0.6 0.4
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
1
30
UNIT
20 Which Difference Is Larger?
Find the difference of 0.9 and 0.3 using a model. Colored Pencils
What you need:
Color the columns to show 0.9.
Cross out the colored columns to
subtract 0.3.
How many colored columns are left?
0.9 0.3
Use number lines to find the difference.
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
0.6 0.4
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
1
30
