Guide 2A - Beast Academy · Excerpt from Beast Academy Guide 2A. (C) 2017 BeastAcademy.com. Deluge...
Transcript of Guide 2A - Beast Academy · Excerpt from Beast Academy Guide 2A. (C) 2017 BeastAcademy.com. Deluge...
48+26=60+14=74
Strategies
Yep. Time to count up all of our
supplies.
|nventory day!
Let's see...This box holds
48 rolls of paper towels...
...and | count 26 more rolls on this
shelf.What's 48+26?
We can add the tens and the ones separately.
So, 48+26 is 60+14=74.40+20 is
60, and 8+6 is 14.
Or, we can just add
50+24.
Huh?
Let's start with the paper
towels.
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Excerpt from Beast Academy Guide 2A. (C) 2017 BeastAcademy.com
48 + 26
+2
+24
50 10048 74
To add 26 to 48, we can
add 2...
Adding 2 to 48 gets us to 50, and 50+24 is easier
than 48+26.
50+24=74.
That makes sense.
| didn't think about the number
line.
...and put them in the
box.
Moving the rolls doesn't change how many there are, but it
sure makes the addition
easier.
| just took two rolls from the pile...
...then 24 more.
On the number line, adding 2 then 24 is
the same as adding 26.
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Excerpt from Beast Academy Guide 2A. (C) 2017 BeastAcademy.com
192 + 24
192 + 24
+8+16
200192 216
192gloves 24
gloves
192gloves 24
gloves
192gloves 24
gloves
192gloves 24
gloves
That's a nice trick! Let's see if it
helps us count some more
items.
We've got one case of
192 disposable gloves...
...plus one full box that holds
24 gloves.
Are we low
on rubber gloves?
What's 192+24?
...then, we need to
add 24–8=16 more to get
216.
Or, to make the addition easier, we
can just take 8 gloves from the box...
To add 24, we can start by adding 8 to get
to 200...
...and put them in the
case. Adding 200+16 is a
lot easier than 192+24.
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DelugeDeluge
ULTRA MEGA
eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
AAAAAAAAAAAAAAAAAAAAA
36 + 17 40 + 13 = 53
Let's count the fizzing mop bucket
tablets.
There are 75 tabs in this ultra pack, and 128 tabs in this mega pack.
|'ll do the sponges. To add 36
sponges plus 17 sponges...
That gives me 40+13=53.
Right. Or, you could take 3 sponges from the pack and put
them with the loose sponges.
Then, you have
33+20=53.
Either way, the
addition is easier.
And the number
of sponges doesn't change.
...| can take 4 of these loose sponges and put
them with the pack.
We have two full packs.
Find the sum.
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Excerpt from Beast Academy Guide 2A. (C) 2017 BeastAcademy.com