Shifting Decimals
#1 (pg. 233)
22a. (pg. 238)
round it up
#12 (pg. 235)
A and C
#8 (pg. 234)
15 markers
#11 (pg. 235)
right, two places
22b. (pg. 238)
ignore it
#3 (pg. 233)
The divisor is getting 100 times bigger and the dividend is getting 100 times bigger, so numbers are equivalent.
#7 (pg. 234)
6.85 meters
#13 (pg. 235)
47.2
100
0.001
4,720
22c. (pg. 238)
Form a Fraction
#4 (pg. 233)
You are dividing into into smaller pieces, so there will be more than 5 pieces. Also, division is the opposite of multiplication.
#6 (pg. 234)
12 postcards
#21 (pg. 237)
3.6
100
0.036
#9 Part A (pg. 234)
23 habitats
#23 (pg. 238)
300+70+2=372
576-560
#18 (pg. 236)
Part A: 700
Part B: Marco only added one 0 to the whole number even though he shifted the decimal in the divisor twice.