SME
Grade 2 Science · Life Science
Habitats and biodiversity
Use this for “How many more kinds of living things live in the pond than in the desert?”
Picture
18
7
More kinds: 11
This is an example. Type the numbers from your problem to start.
Kinds in the pond
example
Kinds in the desert
example
More kinds
answer
Number sentences
18 and 7 are 11 apart
Good to know
•
A habitat is where living things get what they need.
•
Different habitats have different kinds of plants and animals.
•
Count the kinds you find in each habitat.
Step-by-step
WE KNOW
Kinds in the pond: 18
Kinds in the desert: 7
FIND
more kinds
Step 1 · Find more kinds
18 and 7 are ? apart
Count up from the smaller number to the bigger one. That is how many more kinds.
18 − 7
7 + 3 = 10
10 + 8 = 18
Jumps: 3 + 8 = 11
More kinds: 11
Check
Put the numbers back in. Both sides should match.
18 − 7 = 11 ✓
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