Estimate to the sum or difference using whole numbers
36.9+17.2
37+17=54
11+21
10+20=30
1.6+3.1
4.7
5.5-2.3
3.2
16.77+22.31+8.63
47.71
16.7-2.3
17-2=15
51-22
50-20=30
16.2
18.74-12.52
6.22
18.98-17.36+54.77
56.39
21.01+27.33
21+27=48
76+33
75+30=105
75+35=110
80+30=110
80+35=115
61.09+22.40
83.49
24.08-12.19
11.89
Newton scores 4.5 points on his first dive, 3.7 points on his second dive, and 8.2 points on his third dive. What is Newton's total score?
16.4
76.81-18.43
77-18=59
43-16
40-15=30
40-20=20
45-15=20
45-20=25
49.76+198.77
248.53
144.22-56.98
87.94
You, your friend, and your sister go shopping. You have $13.89, your friend has $8.89, and your sister has $17.22. Do you have enough money to buy something that is $50? Why or why not?
No, because you, your friend, and your sister have $40 altogether. $40<$50.
654.78-481.72
655-482=173
128+66
125+65=190
130+65=195
125+70=195
130+70=200
9728.12+54.88
9783
5,231.59-783.38
4,448.21
You go to Walmart to buy shampoo and conditioner. the shampoo costs $3.45. The conditioner costs $6.72. Before you check out, you find a coupon that takes $1.75 off of your total purchase. How munch money do you spend at Walmart?
$8.42