Vietnam War (1959–75), Six-Day War (1967), 1973 Yom Kippur War, Angolan Civil War (1975–2002), Sino-Vietnamese War (1979), Iran–Iraq War (1980–1988), Lebanon War (1982), First Persian Gulf War (1990–91), Yugoslav wars (1991–2001), which includes the Ten-Day War, Croatian War of Independence, Bosnian War, and Kosovo War, but also the Second Persian Gulf War (2003), following Invasion of Iraq and continuation war, and 2011 Syrian Civil War. With the Soviet influence strong in the Middle East, it was only an inevitability that the ZSU-57-2 would find its way into the region and used against the newly founded nation of Israel. This occurred in the Six Day War, Yom Kipper War Lebanon War and were part of the armies of Egypt and Syria. However, the systems were highly outclassed in modern theater and suffered heavily as a result - particularly against Israeli air support and tanks.

This is perhaps the most complex step. Write down the product from the previous multiplication step, but shift it over beneath the problem so that the ones digit in the immediate product is below the multiplier digit. If you live in North America or one of the other few countries that still use the Imperial system, talking about square footage might be natural. Nevertheless, it is important to remember that most of the countries in the world use the metric system, which measures area in square meters. Having a basic, approximate idea of what the conversion from square meters to square feet is, can be valuable in the communications across different countries. A good "ballpark" value that's easy to remember is that 10 sq ft ~ sqm - to convert from sq m to sq ft, we just need to add a zero at the end of the number.Object 500 combined the repeating firepower of a pair of 57mm S-68 cannons to the a chassis of the soon-to-be, all-new T-54 main battle tank. A pilot vehicle was completed in June of 1950 with a second prototype appearing by the end of the year. The following year, the prototypes were featured in a variety of trials centered on powerplant performance and gun reliability. Six more evaluation vehicles followed that featured slight modifications that only benefitted the original design. Delays in the availability and development of the intended S-68 series cannons dragged the project across several more years until the type was formally accepted into service with the Red Army in February of 1955 as the "ZSU-57-2". Even then, production lagged to the point that the ZSU-57-2 was not replacing the previous frontline BTR-40 and BTR-152 units until 1957. Serial production was handled by the state facility of Omsk Works No 174 and ran from 1957 to 1960 to which more than 2,000 examples were ultimately delivered. The first public display of the new ZSU-57-2 was during a November 1958 Moscow military parade. This might sound like a simple mathematical formula, but it is precisely how to measure the square footage of a rectangular room in real life. We just need to measure two consecutive sides in feet and multiply the values together. Repeat the steps until all of the digits in the multiplier have been used up, shifting each intermediate product one digit to the left each time.

BR-281SP: APCBC - An anti-tank belt, it is comprised of APCBC shells that can penetrate most tanks from the side. However, the shells do not contain any explosive filler, so it is recommended to upgrade to the BR-281U belt when possible. To use the calculator is as simple as setting the known values and letting the system calculate the rest. This means that you can use this calculator to compute the price per square foot of a property if you know the total price and total square footage. As a unit of area, it has a magnitude equivalent to the area of a square with sides of 1 foot. This size makes it helpful to talk about the area of everyday objects such as a house (typically 500-1000 sq ft), a room (~100 sq ft) and even an A4 piece of paper (0.65 sq ft) without having to use either very big or very small numbers. There exist, obviously, other units of area that can express the same magnitude as the sq ft and might even be more suitable for very small objects (like the square inch), very big objects (like the acre), or to simply to communicate with the rest of the world by using the standardized SI/Metric units (whose default unit of area is the square meter). Before we talk a bit more about the usefulness of this measurement, let's take a look at how we can use this calculator when square footage pricing comes into play. First, make sure that the "One room/area" option is selected at the top of the calculator. The area can be calculated in the previous steps or can also be inputted by the user. Then either the price per sq ft or the total cost should be provided to obtain the other value. Let's look at a complete example:A single HE-Frag shell was considered lethal against any aircraft of the time according to the Air Defence Research Institute No. 2, and this SPAAG was seen by most experts as the most powerful in existence at that stage, especially compared to its NATO rival, the M42 Duster. Many ZSU-57-2 were converted into bulldozers after being removed from AA units at the beginning of the 1970s by army workshops. A steel closed superstructure replaced the turret and a BTS-55 bulldozer blade was added at the front.

Multi-digit multiplication is a math skill typically introduced around 4th grade after the basic facts are understood and usually model-based number sense has reinforced the concepts of array construction. When you're ready to understand the multi-digit algorithm, this multiplication calculator can be used as an in-class tool to discuss how partial products tie into these earlier manipulative-based skills. Parts of a Multiplication Problem In early 1946, an attempt was made to mate 4 x 37mm cannons to the chassis of the war-winning T-34 medium tank. However, the design was not selected for serial production which led to the idea of mounting 2 x 57mm autocannons to a four-wheeled towed carriage system. Again, this design idea was not met with much fervor and fell to history. Work began on still another type in 1947 though it was not until 1948 that the "Object 500" design emerged as a frontrunner that Soviet SPAAGs ranks would receive their long-awaited for shot in the arm. Start grouping the digits from the unit’s place in pairs of two by adding a bar on top of them. We will get only one pair in this case (57). Now we will find the square root of 57 using the following methods: Square Root of 57 Using Approximation MethodFirst, find two consecutive perfect squares among which the number 57 will lies. The two perfect squares are 49 (7 2) and 64 (8 2). Therefore, the whole number part of the square root of 57 will be 7. Versatile in the anti-aircraft and anti-tank role this heavily modified T-54 chassis delivers two heavy 57 mm punches. The ZSU-57-2 can be used for two roles. We will now calculate the square root of 57 by the long division method with the help of the below-given steps. Works No. 174 started a modernization programme started in 1957 but soon abandoned due to the development of more promising radar-guided SPAAGs with lower-bore cannons but much faster rate of fire. The absence of mechanical computing and reliance on visual sights made it only practical by day, accurate when idle (not on the move) and against relatively slow, low-flying objects. Probably its biggest limitation was its slow traverse, woefully inadequate against low-flying jets at full throttle. But when these big cannons hit their mark either by chance or marksmanship the result was almost certain. Just like the US SPAAGs of the first generation they were gradually found more useful in support of the infantry when raw firepower was needed on the spot. If you have any questions about this fifty-seven times table leave us a comment. Please share our 57 times tables with your friends and bookmark us.