Standard Algorithm
Solve 642 x 53 using the standard algorithm
34,026
Solve 642 x 53 using partial products
34,026
Solve 642 x 53 using estimation
642 x 50 = 32,100
642 x 3 = 1,926
32,100 + 1,926 = 34,026
How do fish get oxygen from the water to breathe?
They use gills
What is the main difference between a vertebrate and an invertebrate?
Vertebrates have a spine (backbone), invertebrates do not.
Solve 412 x 23 using the standard algorithm
9,476
Solve 412 x 23 using the partial products method
9,476
Before solving 412 x 23, which estimate would be most helpful to check if your final answer is reasonable?
400 x 20 = 8,000
What unique body coverings do all birds have that no other animal has?
Feathers
What 5 types of vertebrates did we study?
Mammals, Fish, Birds, Reptiles, and Amphibians
A school cafeteria orders 125 boxes of apples. Each box contains 24 apples. How many apples did the cafeteria order in total?
Show your work using the standard algorithm
3,000
A school cafeteria orders 125 boxes of apples. Each box contains 24 apples. How many apples did the cafeteria order in total?
Show your work using the partial products method
3,000
A school cafeteria orders 125 boxes of apples. Each box contains 24 apples. What would be a good estimation to find how many apples the cafeteria will receive in all?
125 x 20 = 2,500 OR 125 x 25 = 3,125
What is a key difference between the skin of an amphibian and that of a reptile?
Amphibians have smooth, moist skin, reptiles have dry, scaly skin
Why do scientists classify animals into different groups?
To understand the differences between them
A local charity is putting together hygiene kits. They have 458 boxes, and each box needs 38 bandages. How many bandages will the charity use to fill all the boxes?
Use the standard algorithm
17,404
A local charity is putting together hygiene kits. They have 458 boxes, and each box needs 38 bandages. How many bandages will the charity use to fill all the boxes?
Use the partial products method
17,404
A local charity is putting together hygiene kits. They have 458 boxes, and each box needs 38 bandages. What would a good estimation be for how many bandages the charity will use? Include your expression
450 x 50 = 22,500
How do almost all mammals have their babies?
They give birth to live young
What do we call the "Guess Who" method of classifying animals?
Dichotomous Key
When using the standard algorithm to multiply 345 x 26, what is the first step after multiplying 345 by the ones digit (6)?
Add a zero as a placeholder in the ones place before multiplying 345 by 2
When using partial products method to multiply 345 x 26, what is the first step after multiplying 345 by the ones digit (6)?
Multiply 5 x 20
After using estimation to multiply 345 x 26, instead multiplying 345 x 30, what do you need to do to solve the final answer?
Find the difference between the actual multiplier and your estimation (4), then multiply that difference by 345. Finally, subtract that product from the estimated product.
Why can some invertebrates in the water grow much larger than invertebrates on land?
Water supports their bodies even without a skeleton
Give an example of all 5 types of vertebrates
Example: Dog, Shark, Eagle, Alligator, Frog