Whole Numbers
98 x 5 = ?
490
2.4 x 1.8 =
4.32
Ms Vaughan is making pies for Pi day. She carefully measures out the ingredients to make apple pie. Each pie has 5.26 cups of apples in the filling. How many cups of apples are in 8 pies?
42.08 cups
Find the mistake; Explain
34 x .43 = 1,462
14.62
They forgot to put the decimal
836 x 5 =
4,180
426 x 6 = ?
2,556
6.17 x 3.6 = ?
22.212
Kelly moves fresh bales of hay into the horse stables. Each bale of hay weighs 13.4 pounds. Today, she moved 32 bales of hay into the stables. What is the total weight of hay in the stables?
428.8 pounds
Find the mistake; Explain.
4.56 x 2.4 = 10.844
10.944
They did not add correctly
9.20 x 8.3 =
76.36
3,457 x 2 = ?
6,914
13.2 x .22 =
2.904
Mrs. Rodriguez is selling popcorn at the snack stand. Each bag holds 2.3 ounces of popcorn. In one hour, she sold 56 bags of popcorn. How many ounces of popcorn are in 56 bags?
128.8 ounces
Find the mistake;
72.3 x 25 = 1,797.5
72.3 x 25 = 1,807.5
They forgot to regroup the 1 after multiplying 2x5.
645 x 87 =
56,115
9,683 x 7 = ?
67,781
24.6 x 3.7
91.02
The local recycling center sends a truck to the school once a month to collect the paper that was recycled. Each month, the truck picks up 642.3 pounds of paper. How much would the truck pick up after 3 months?
1,926.9 pounds
Find the mistake; Explain.
2.36 x 41 = 11.80
2.36 x 41 = 96.76
They forgot to drop the turtle egg
34.24 x 2.3 =
78.752
13,462 x 3 = ?
40,386
6.75 x .65
4.3875
Lily bought a new car. It gets 27.6 miles per gallon of gas on the highway. Her gas tank is able to hold 14.2 gallons of gas. How many miles can Lily travel on the highway on one tank of gas?
391.92 miles
Find the mistake: Explain
23.8 x 7 = 161.6
166.6
Forgot to carry the 5 when multiplying 7x8
6.52 x 4.5 =
29.34