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M_G4.05.pptx
1
Math 4.05
Addition
2
Math 4.05
3
Add
4
Multiply
How many bears if there are 10 bears in each box?
100 bears were sent to each of the nearby cities. How many bears were sent to 2 cities? To 3 cities?
Count in hundreds how many bears were sent to 10 cities.
5
Multiply
In the cities, bears were taken to shops. 4 boxes and 2 more bears were brought to Detsky Mir. And in the Kapitosh-ka store - 2 boxes and 4 more bears. How many bears were brought to each store?
6
Add and Subtract
999 + 1= 700 180 + 9= 570 + 30 - 330=
900 - 1= 347 - 7- 40= 950 + 50 - 660=
7
Add and Subtract
There are 19 people in the class, 9 of them are boys.
How many girls are in this class?
Write and solve two problems inverse to the given one.
19 p
9 boys
? girls
8
Add and Subtract
Misha is 10 years old. His grandfather is 6 times older than Misha, and his grandmother is 4 years younger than his grandfather. How old is Misha's grandmother?
Make a similar problem about your relatives.
9
Cards
1×4= | 1×3= | 2×4= | 6×4= |
2×4= | 2×3= | 4×2= | 4×6= |
3×4= | 3×3= | 2×3= | 7×4= |
4×4= | 4×3= | 3×2= | 4×7= |
5×4= | 5×3= | 3×4= | 3×7= |
6×4= | 6×3= | 4×3= | 7×3= |
7×4= | 7×3= | 4×4= | 6×3= |
8×4= | 8×3= | 5×4= | 3×6= |
9×4= | 9×3= | 4×5= | 9×4= |
10×4= | 10×3= | 10×4= | 4×10= |
10
Multiply
12 ×4
23 ×4
29 ×4
209 ×4
299 ×4
11
Cards
1×4= | 7×4= | 9×4= | 5×4= |
2×4= | 8×4= | 2×4= | 8×4= |
3×4= | 10×4= | 5×4= | 4×4= |
4×4= | 6×4= | 7×4= | 3×4= |
5×4= | 8×4= | 6×4= | |
6×4= | 3×4= | 9×4= | 8×4= |
7×4= | 9×4= | 4×4= | 6×4= |
8×4= | 6×4= | 7×4= | |
9×4= | 4×4= | 7×4= | 9×4= |
10×4= | 8×4= | ||
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