At the zoo, you see a Columbian black spider monkey. The length of its body is 58.31 cm. The length of its tail is 78.96 cm. To the nearest.

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Presentation transcript:

At the zoo, you see a Columbian black spider monkey. The length of its body is cm. The length of its tail is cm. To the nearest tenth of a centimeter, estimate the total length of the monkey’s body and tail.

Round to the nearest tenth Add

A rectangular kitchen is 8.5 ft. long and 5.75 ft. wide. Use rounding to estimate the area of the kitchen in square feet.

Round to the nearest whole foot Multiply

At a snack shop, you order a taco that costs $3.79, a juice that costs $.89, and a yogurt that costs $1.39. Estimate the total cost of your order.

+

+

+ = $6

Compatible Numbers are numbers that are easy to compute mentally. Compatible Numbers are particularly useful to solve quotients.

Suppose you have saved $ About how many CD’s can you buy if each costs $15.95?