SME
Grade 3 Science · Problem type
Traits the environment changes
Use this for “Two bean plants share a parent. The watered one is 32 cm, the dry one 14 cm. How much taller is it?”
Chart
Taller by: 18 cm
This is an example. Type your own values to start a new problem.
Watered plant (cm)
−
Dry plant (cm)
=
Taller by (cm)
Formulas
32 − 14 = 18
Difference between watered plant and dry plant = taller by
Assumptions
•
Two plants from seeds of the same parent plant inherit similar traits.
•
The environment still matters: the plant that gets more water grows taller.
Step-by-step
WE KNOW
Watered plant: 32 cm
Dry plant: 14 cm
FIND
taller by
Step 1 · Find taller by
32 − 14 = ?
Difference between watered plant and dry plant = taller by
Take the smaller number away from the bigger one.
2
12
3
2
−
1
4
1
8
Taller by = 18 cm (the watered plant is taller)
Check
Put the numbers back in. Both sides should match.
32 − 14 = 18 ✓
Topic check
See what you know: 5 questions on this topic
New questions each time. Pass to mark it complete.