Estimating
Rounding
Multiply 1x2, 1x3, 1X4
Multiply 2X2
Random
100
Estimate and write a number model. 623+439+919=
What is 600+400+900=1,900 620+440+920=1,980 620+450+900=1,950
100
Round to the nearest hundred. 21,563
What is 21,600
100
Multiply. 85 * 9 =
What is 770
100
Multiply. 25 * 32 =
What is 800.
100
What is the value of the 9 in the number 1,569,231,021?
What is 9,000,000
200
Estimate and write a number model. 3,216-496=
What is 3,200-500=2,700
200
Round to the nearest ten thousand. 9,463,219
What is 9,460,000
200
Multiply. 346 * 6 =
What is 2,080
200
Multiply. 56 * 48 =
What is 2,690
200
Write in expanded form. 363,472,912
What is 300,000,000 + 60,000,000 + 3,000,000 + 400,000 + 70,000 + 2,000 + 900 + 10 + 2
300
Estimate and write a number model. 68 * 52
What is 70 * 50 = 3,500
300
Round to the nearest million. 1,483,429,938
What is 1,483,000,000
300
Multiply. 3,297 * 4 =
What is 13,190
300
Multiply 97 * 86 =
What is 8,340
300
Fill out the In/Out Machine.
Correctly filled out machine. Answer on paper.
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